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[gnuastro-commits] master 15580cbc 1/2: All: updated copyright years to


From: Mohammad Akhlaghi
Subject: [gnuastro-commits] master 15580cbc 1/2: All: updated copyright years to 2023
Date: Fri, 3 Feb 2023 11:11:06 -0500 (EST)

branch: master
commit 15580cbca97c19843caaad3ce215a89aa0056a10
Author: Mohammad Akhlaghi <mohammad@akhlaghi.org>
Commit: Mohammad Akhlaghi <mohammad@akhlaghi.org>

    All: updated copyright years to 2023
    
    Until now, the latest copyright year on all the files was 2022. But it is
    one month that we have moved into 2023.
    
    With this commit, the latest year in the copyright statements is 2023.
---
 ChangeLog                                     |  2 +-
 Makefile.am                                   |  2 +-
 NEWS                                          |  4 ++--
 README                                        |  4 ++--
 README-hacking                                |  4 ++--
 THANKS                                        |  4 ++--
 bin/TEMPLATE/Makefile.am                      |  2 +-
 bin/TEMPLATE/TEMPLATE.c                       |  2 +-
 bin/TEMPLATE/TEMPLATE.h                       |  2 +-
 bin/TEMPLATE/args.h                           |  2 +-
 bin/TEMPLATE/astTEMPLATE.conf                 |  2 +-
 bin/TEMPLATE/authors-cite.h                   |  2 +-
 bin/TEMPLATE/main.c                           |  2 +-
 bin/TEMPLATE/main.h                           |  2 +-
 bin/TEMPLATE/ui.c                             |  2 +-
 bin/TEMPLATE/ui.h                             |  2 +-
 bin/arithmetic/Makefile.am                    |  2 +-
 bin/arithmetic/args.h                         |  2 +-
 bin/arithmetic/arithmetic.c                   |  2 +-
 bin/arithmetic/arithmetic.h                   |  2 +-
 bin/arithmetic/astarithmetic-complete.bash    |  2 +-
 bin/arithmetic/astarithmetic.conf             |  2 +-
 bin/arithmetic/authors-cite.h                 |  2 +-
 bin/arithmetic/main.c                         |  2 +-
 bin/arithmetic/main.h                         |  2 +-
 bin/arithmetic/operands.c                     |  2 +-
 bin/arithmetic/operands.h                     |  2 +-
 bin/arithmetic/ui.c                           |  2 +-
 bin/arithmetic/ui.h                           |  2 +-
 bin/buildprog/Makefile.am                     |  2 +-
 bin/buildprog/args.h                          |  2 +-
 bin/buildprog/astbuildprog-complete.bash      |  2 +-
 bin/buildprog/astbuildprog.conf.in            |  2 +-
 bin/buildprog/authors-cite.h                  |  2 +-
 bin/buildprog/buildprog.c                     |  2 +-
 bin/buildprog/buildprog.h                     |  2 +-
 bin/buildprog/main.c                          |  2 +-
 bin/buildprog/main.h                          |  2 +-
 bin/buildprog/ui.c                            |  2 +-
 bin/buildprog/ui.h                            |  2 +-
 bin/completion.bash.in                        |  2 +-
 bin/convertt/Makefile.am                      |  2 +-
 bin/convertt/args.h                           |  2 +-
 bin/convertt/astconvertt-complete.bash        |  2 +-
 bin/convertt/astconvertt.conf                 |  2 +-
 bin/convertt/authors-cite.h                   |  2 +-
 bin/convertt/color.c                          |  2 +-
 bin/convertt/color.h                          |  2 +-
 bin/convertt/convertt.c                       |  2 +-
 bin/convertt/convertt.h                       |  2 +-
 bin/convertt/main.c                           |  2 +-
 bin/convertt/main.h                           |  2 +-
 bin/convertt/ui.c                             |  2 +-
 bin/convertt/ui.h                             |  2 +-
 bin/convolve/Makefile.am                      |  2 +-
 bin/convolve/args.h                           |  2 +-
 bin/convolve/astconvolve-complete.bash        |  2 +-
 bin/convolve/astconvolve.conf                 |  2 +-
 bin/convolve/authors-cite.h                   |  2 +-
 bin/convolve/convolve.c                       |  2 +-
 bin/convolve/convolve.h                       |  2 +-
 bin/convolve/main.c                           |  2 +-
 bin/convolve/main.h                           |  2 +-
 bin/convolve/ui.c                             |  2 +-
 bin/convolve/ui.h                             |  2 +-
 bin/cosmiccal/Makefile.am                     |  2 +-
 bin/cosmiccal/args.h                          |  2 +-
 bin/cosmiccal/astcosmiccal-complete.bash      |  2 +-
 bin/cosmiccal/astcosmiccal.conf               |  2 +-
 bin/cosmiccal/authors-cite.h                  |  2 +-
 bin/cosmiccal/cosmiccal.c                     |  2 +-
 bin/cosmiccal/cosmiccal.h                     |  2 +-
 bin/cosmiccal/main.c                          |  2 +-
 bin/cosmiccal/main.h                          |  2 +-
 bin/cosmiccal/ui.c                            |  2 +-
 bin/cosmiccal/ui.h                            |  2 +-
 bin/crop/Makefile.am                          |  2 +-
 bin/crop/args.h                               |  2 +-
 bin/crop/astcrop-complete.bash                |  2 +-
 bin/crop/astcrop.conf                         |  2 +-
 bin/crop/authors-cite.h                       |  2 +-
 bin/crop/crop.c                               |  2 +-
 bin/crop/crop.h                               |  2 +-
 bin/crop/main.c                               |  2 +-
 bin/crop/main.h                               |  2 +-
 bin/crop/onecrop.c                            |  2 +-
 bin/crop/onecrop.h                            |  2 +-
 bin/crop/ui.c                                 |  2 +-
 bin/crop/ui.h                                 |  2 +-
 bin/crop/wcsmode.c                            |  2 +-
 bin/crop/wcsmode.h                            |  2 +-
 bin/fits/Makefile.am                          |  2 +-
 bin/fits/args.h                               |  2 +-
 bin/fits/astfits-complete.bash                |  2 +-
 bin/fits/astfits.conf                         |  2 +-
 bin/fits/authors-cite.h                       |  2 +-
 bin/fits/extension.c                          |  2 +-
 bin/fits/extension.h                          |  2 +-
 bin/fits/fits.c                               |  2 +-
 bin/fits/fits.h                               |  2 +-
 bin/fits/keywords.c                           |  2 +-
 bin/fits/keywords.h                           |  2 +-
 bin/fits/main.c                               |  2 +-
 bin/fits/main.h                               |  2 +-
 bin/fits/meta.c                               |  2 +-
 bin/fits/meta.h                               |  2 +-
 bin/fits/ui.c                                 |  2 +-
 bin/fits/ui.h                                 |  2 +-
 bin/gnuastro.conf                             |  2 +-
 bin/match/Makefile.am                         |  2 +-
 bin/match/args.h                              |  2 +-
 bin/match/astmatch.conf                       |  2 +-
 bin/match/authors-cite.h                      |  2 +-
 bin/match/debug-1.sh                          |  2 +-
 bin/match/main.c                              |  2 +-
 bin/match/main.h                              |  2 +-
 bin/match/match.c                             |  2 +-
 bin/match/match.h                             |  2 +-
 bin/match/ui.c                                |  2 +-
 bin/match/ui.h                                |  2 +-
 bin/mkcatalog/Makefile.am                     |  2 +-
 bin/mkcatalog/args.h                          |  2 +-
 bin/mkcatalog/astmkcatalog.conf               |  2 +-
 bin/mkcatalog/authors-cite.h                  |  2 +-
 bin/mkcatalog/columns.c                       |  2 +-
 bin/mkcatalog/columns.h                       |  2 +-
 bin/mkcatalog/main.c                          |  2 +-
 bin/mkcatalog/main.h                          |  2 +-
 bin/mkcatalog/mkcatalog.c                     |  2 +-
 bin/mkcatalog/mkcatalog.h                     |  2 +-
 bin/mkcatalog/parse.c                         |  2 +-
 bin/mkcatalog/parse.h                         |  2 +-
 bin/mkcatalog/ui.c                            |  2 +-
 bin/mkcatalog/ui.h                            |  2 +-
 bin/mkcatalog/upperlimit.c                    |  2 +-
 bin/mkcatalog/upperlimit.h                    |  2 +-
 bin/mknoise/Makefile.am                       |  2 +-
 bin/mknoise/args.h                            |  2 +-
 bin/mknoise/astmknoise.conf                   |  2 +-
 bin/mknoise/authors-cite.h                    |  2 +-
 bin/mknoise/main.c                            |  2 +-
 bin/mknoise/main.h                            |  2 +-
 bin/mknoise/mknoise.c                         |  2 +-
 bin/mknoise/mknoise.h                         |  2 +-
 bin/mknoise/ui.c                              |  2 +-
 bin/mknoise/ui.h                              |  2 +-
 bin/mkprof/Makefile.am                        |  2 +-
 bin/mkprof/args.h                             |  2 +-
 bin/mkprof/astmkprof-3d.conf                  |  2 +-
 bin/mkprof/astmkprof.conf                     |  2 +-
 bin/mkprof/authors-cite.h                     |  2 +-
 bin/mkprof/main.c                             |  2 +-
 bin/mkprof/main.h                             |  2 +-
 bin/mkprof/mkprof.c                           |  2 +-
 bin/mkprof/mkprof.h                           |  2 +-
 bin/mkprof/oneprofile.c                       |  2 +-
 bin/mkprof/oneprofile.h                       |  2 +-
 bin/mkprof/profiles.c                         |  2 +-
 bin/mkprof/profiles.h                         |  2 +-
 bin/mkprof/ui.c                               |  2 +-
 bin/mkprof/ui.h                               |  2 +-
 bin/noisechisel/Makefile.am                   |  2 +-
 bin/noisechisel/args.h                        |  2 +-
 bin/noisechisel/astnoisechisel.conf           |  2 +-
 bin/noisechisel/authors-cite.h                |  2 +-
 bin/noisechisel/detection.c                   |  2 +-
 bin/noisechisel/detection.h                   |  2 +-
 bin/noisechisel/kernel-2d.h                   |  2 +-
 bin/noisechisel/main.c                        |  2 +-
 bin/noisechisel/main.h                        |  2 +-
 bin/noisechisel/noisechisel.c                 |  2 +-
 bin/noisechisel/noisechisel.h                 |  2 +-
 bin/noisechisel/sky.c                         |  2 +-
 bin/noisechisel/sky.h                         |  2 +-
 bin/noisechisel/threshold.c                   |  2 +-
 bin/noisechisel/threshold.h                   |  2 +-
 bin/noisechisel/ui.c                          |  2 +-
 bin/noisechisel/ui.h                          |  2 +-
 bin/query/Makefile.am                         |  2 +-
 bin/query/args.h                              |  2 +-
 bin/query/astquery.conf                       |  2 +-
 bin/query/astron.c                            |  2 +-
 bin/query/astron.h                            |  2 +-
 bin/query/authors-cite.h                      |  2 +-
 bin/query/gaia.c                              |  2 +-
 bin/query/gaia.h                              |  2 +-
 bin/query/main.c                              |  2 +-
 bin/query/main.h                              |  2 +-
 bin/query/ned.c                               |  2 +-
 bin/query/ned.h                               |  2 +-
 bin/query/query.c                             |  2 +-
 bin/query/query.h                             |  2 +-
 bin/query/tap.c                               |  2 +-
 bin/query/tap.h                               |  2 +-
 bin/query/ui.c                                |  2 +-
 bin/query/ui.h                                |  2 +-
 bin/query/vizier.c                            |  2 +-
 bin/query/vizier.h                            |  2 +-
 bin/script/Makefile.am                        |  2 +-
 bin/script/ds9-region.in                      |  4 ++--
 bin/script/fits-view.desktop.in               |  2 +-
 bin/script/fits-view.in                       |  4 ++--
 bin/script/psf-scale-factor.in                |  4 ++--
 bin/script/psf-select-stars.in                |  4 ++--
 bin/script/psf-stamp.in                       |  4 ++--
 bin/script/psf-subtract.in                    |  4 ++--
 bin/script/psf-unite.in                       |  4 ++--
 bin/script/radial-profile.in                  |  4 ++--
 bin/script/sort-by-night.in                   |  4 ++--
 bin/segment/Makefile.am                       |  2 +-
 bin/segment/args.h                            |  2 +-
 bin/segment/astsegment.conf                   |  2 +-
 bin/segment/authors-cite.h                    |  2 +-
 bin/segment/clumps.c                          |  2 +-
 bin/segment/clumps.h                          |  2 +-
 bin/segment/kernel-2d.h                       |  2 +-
 bin/segment/main.c                            |  2 +-
 bin/segment/main.h                            |  2 +-
 bin/segment/segment.c                         |  2 +-
 bin/segment/segment.h                         |  2 +-
 bin/segment/ui.c                              |  2 +-
 bin/segment/ui.h                              |  2 +-
 bin/statistics/Makefile.am                    |  2 +-
 bin/statistics/args.h                         |  2 +-
 bin/statistics/aststatistics.conf             |  2 +-
 bin/statistics/authors-cite.h                 |  2 +-
 bin/statistics/contour.c                      |  2 +-
 bin/statistics/contour.h                      |  2 +-
 bin/statistics/main.c                         |  2 +-
 bin/statistics/main.h                         |  2 +-
 bin/statistics/sky.c                          |  2 +-
 bin/statistics/sky.h                          |  2 +-
 bin/statistics/statistics.c                   |  2 +-
 bin/statistics/statistics.h                   |  2 +-
 bin/statistics/ui.c                           |  2 +-
 bin/statistics/ui.h                           |  2 +-
 bin/table/Makefile.am                         |  2 +-
 bin/table/args.h                              |  2 +-
 bin/table/arithmetic.c                        |  2 +-
 bin/table/arithmetic.h                        |  2 +-
 bin/table/asttable-complete.bash              |  2 +-
 bin/table/asttable.conf                       |  2 +-
 bin/table/authors-cite.h                      |  2 +-
 bin/table/main.c                              |  2 +-
 bin/table/main.h                              |  2 +-
 bin/table/table.c                             |  2 +-
 bin/table/table.h                             |  2 +-
 bin/table/ui.c                                |  2 +-
 bin/table/ui.h                                |  2 +-
 bin/warp/Makefile.am                          |  2 +-
 bin/warp/args.h                               |  2 +-
 bin/warp/astwarp.conf                         |  2 +-
 bin/warp/authors-cite.h                       |  2 +-
 bin/warp/main.c                               |  2 +-
 bin/warp/main.h                               |  2 +-
 bin/warp/ui.c                                 |  2 +-
 bin/warp/ui.h                                 |  2 +-
 bin/warp/warp.c                               |  2 +-
 bin/warp/warp.h                               |  2 +-
 bootstrap                                     |  2 +-
 bootstrap.conf                                |  2 +-
 configure.ac                                  |  2 +-
 developer-build                               |  2 +-
 doc/Makefile.am                               |  2 +-
 doc/README                                    |  4 ++--
 doc/announce-acknowledge.txt                  |  2 +-
 doc/fonts.css                                 |  2 +-
 doc/formath.texi                              |  2 +-
 doc/forwebpage                                |  2 +-
 doc/genauthors                                |  2 +-
 doc/gnuastro-figures/README                   |  2 +-
 doc/gnuastro-figures/gnuastro.svg             |  2 +-
 doc/gnuastro.en.html                          |  2 +-
 doc/gnuastro.fr.html                          |  2 +-
 doc/gnuastro.texi                             | 30 +++++++++++++--------------
 doc/gnuastro.translist                        |  2 +-
 doc/javascript.html                           |  2 +-
 doc/plotsrc/Makefile                          |  2 +-
 doc/plotsrc/README                            |  4 ++--
 doc/plotsrc/all.tex                           |  2 +-
 doc/plotsrc/conversions.sh                    |  2 +-
 doc/plotsrc/tex/color-names.tex               |  2 +-
 doc/plotsrc/tex/flatplane.tex                 |  2 +-
 doc/plotsrc/tex/iandtime.tex                  |  2 +-
 doc/plotsrc/tex/samplingfreq.tex              |  2 +-
 doc/plotsrc/tex/sphereandplane.tex            |  2 +-
 doc/release-checklist.txt                     |  4 ++--
 doc/style.css                                 |  2 +-
 genauthors                                    |  2 +-
 lib/Makefile.am                               |  2 +-
 lib/arithmetic-and.c                          |  2 +-
 lib/arithmetic-bitand.c                       |  2 +-
 lib/arithmetic-bitlsh.c                       |  2 +-
 lib/arithmetic-bitor.c                        |  2 +-
 lib/arithmetic-bitrsh.c                       |  2 +-
 lib/arithmetic-bitxor.c                       |  2 +-
 lib/arithmetic-divide.c                       |  2 +-
 lib/arithmetic-eq.c                           |  2 +-
 lib/arithmetic-ge.c                           |  2 +-
 lib/arithmetic-gt.c                           |  2 +-
 lib/arithmetic-le.c                           |  2 +-
 lib/arithmetic-lt.c                           |  2 +-
 lib/arithmetic-minus.c                        |  2 +-
 lib/arithmetic-modulo.c                       |  2 +-
 lib/arithmetic-multiply.c                     |  2 +-
 lib/arithmetic-ne.c                           |  2 +-
 lib/arithmetic-or.c                           |  2 +-
 lib/arithmetic-plus.c                         |  2 +-
 lib/arithmetic-set.c                          |  2 +-
 lib/arithmetic.c                              |  2 +-
 lib/array.c                                   |  2 +-
 lib/binary.c                                  |  2 +-
 lib/blank.c                                   |  2 +-
 lib/box.c                                     |  2 +-
 lib/checkset.c                                |  2 +-
 lib/color.c                                   |  2 +-
 lib/convolve.c                                |  2 +-
 lib/cosmology.c                               |  2 +-
 lib/data.c                                    |  2 +-
 lib/dimension.c                               |  2 +-
 lib/ds9.c                                     |  2 +-
 lib/eps.c                                     |  2 +-
 lib/fit.c                                     |  2 +-
 lib/fits.c                                    |  2 +-
 lib/git.c                                     |  2 +-
 lib/gnuastro-internal/README                  |  2 +-
 lib/gnuastro-internal/arithmetic-and.h        |  2 +-
 lib/gnuastro-internal/arithmetic-binary.h     |  2 +-
 lib/gnuastro-internal/arithmetic-bitand.h     |  2 +-
 lib/gnuastro-internal/arithmetic-bitlsh.h     |  2 +-
 lib/gnuastro-internal/arithmetic-bitor.h      |  2 +-
 lib/gnuastro-internal/arithmetic-bitrsh.h     |  2 +-
 lib/gnuastro-internal/arithmetic-bitxor.h     |  2 +-
 lib/gnuastro-internal/arithmetic-divide.h     |  2 +-
 lib/gnuastro-internal/arithmetic-eq.h         |  2 +-
 lib/gnuastro-internal/arithmetic-ge.h         |  2 +-
 lib/gnuastro-internal/arithmetic-gt.h         |  2 +-
 lib/gnuastro-internal/arithmetic-internal.h   |  2 +-
 lib/gnuastro-internal/arithmetic-le.h         |  2 +-
 lib/gnuastro-internal/arithmetic-lt.h         |  2 +-
 lib/gnuastro-internal/arithmetic-minus.h      |  2 +-
 lib/gnuastro-internal/arithmetic-modulo.h     |  2 +-
 lib/gnuastro-internal/arithmetic-multiply.h   |  2 +-
 lib/gnuastro-internal/arithmetic-ne.h         |  2 +-
 lib/gnuastro-internal/arithmetic-or.h         |  2 +-
 lib/gnuastro-internal/arithmetic-plus.h       |  2 +-
 lib/gnuastro-internal/arithmetic-set.h        |  2 +-
 lib/gnuastro-internal/checkset.h              |  2 +-
 lib/gnuastro-internal/commonopts.h            |  2 +-
 lib/gnuastro-internal/config.h.in             |  2 +-
 lib/gnuastro-internal/fixedstringmacros.h     |  4 ++--
 lib/gnuastro-internal/options.h               |  2 +-
 lib/gnuastro-internal/tableintern.h           |  2 +-
 lib/gnuastro-internal/tile-internal.h         |  2 +-
 lib/gnuastro-internal/timing.h                |  2 +-
 lib/gnuastro-internal/wcsdistortion.h         |  2 +-
 lib/gnuastro.pc.in                            |  2 +-
 lib/gnuastro/README                           |  4 ++--
 lib/gnuastro/arithmetic.h                     |  2 +-
 lib/gnuastro/array.h                          |  2 +-
 lib/gnuastro/binary.h                         |  2 +-
 lib/gnuastro/blank.h                          |  2 +-
 lib/gnuastro/box.h                            |  2 +-
 lib/gnuastro/color.h                          |  2 +-
 lib/gnuastro/convolve.h                       |  2 +-
 lib/gnuastro/cosmology.h                      |  2 +-
 lib/gnuastro/data.h                           |  2 +-
 lib/gnuastro/dimension.h                      |  2 +-
 lib/gnuastro/ds9.h                            |  2 +-
 lib/gnuastro/eps.h                            |  2 +-
 lib/gnuastro/fit.h                            |  2 +-
 lib/gnuastro/fits.h                           |  2 +-
 lib/gnuastro/git.h                            |  2 +-
 lib/gnuastro/interpolate.h                    |  2 +-
 lib/gnuastro/jpeg.h                           |  2 +-
 lib/gnuastro/kdtree.h                         |  2 +-
 lib/gnuastro/label.h                          |  2 +-
 lib/gnuastro/list.h                           |  2 +-
 lib/gnuastro/match.h                          |  2 +-
 lib/gnuastro/pdf.h                            |  2 +-
 lib/gnuastro/permutation.h                    |  2 +-
 lib/gnuastro/pointer.h                        |  2 +-
 lib/gnuastro/polygon.h                        |  2 +-
 lib/gnuastro/python.h                         |  2 +-
 lib/gnuastro/qsort.h                          |  2 +-
 lib/gnuastro/speclines.h                      |  2 +-
 lib/gnuastro/statistics.h                     |  2 +-
 lib/gnuastro/table.h                          |  2 +-
 lib/gnuastro/threads.h                        |  2 +-
 lib/gnuastro/tiff.h                           |  2 +-
 lib/gnuastro/tile.h                           |  2 +-
 lib/gnuastro/txt.h                            |  2 +-
 lib/gnuastro/type.h                           |  2 +-
 lib/gnuastro/units.h                          |  2 +-
 lib/gnuastro/warp.h                           |  2 +-
 lib/gnuastro/wcs.h                            |  2 +-
 lib/interpolate.c                             |  2 +-
 lib/jpeg.c                                    |  2 +-
 lib/kdtree.c                                  |  2 +-
 lib/label.c                                   |  2 +-
 lib/list.c                                    |  2 +-
 lib/makeplugin.c                              |  2 +-
 lib/match.c                                   |  2 +-
 lib/options.c                                 |  2 +-
 lib/pdf.c                                     |  2 +-
 lib/permutation.c                             |  2 +-
 lib/pointer.c                                 |  2 +-
 lib/polygon.c                                 |  2 +-
 lib/python.c                                  |  2 +-
 lib/qsort.c                                   |  2 +-
 lib/speclines.c                               |  2 +-
 lib/statistics.c                              |  2 +-
 lib/table.c                                   |  2 +-
 lib/tableintern.c                             |  2 +-
 lib/threads.c                                 |  2 +-
 lib/tiff.c                                    |  2 +-
 lib/tile-internal.c                           |  2 +-
 lib/tile.c                                    |  2 +-
 lib/timing.c                                  |  2 +-
 lib/txt.c                                     |  2 +-
 lib/type.c                                    |  2 +-
 lib/units.c                                   |  2 +-
 lib/warp.c                                    |  2 +-
 lib/wcs.c                                     |  2 +-
 lib/wcsdistortion.c                           |  2 +-
 tests/Makefile.am                             |  2 +-
 tests/arithmetic/connected-components.sh      |  2 +-
 tests/arithmetic/onlynumbers.sh               |  2 +-
 tests/arithmetic/or.sh                        |  2 +-
 tests/arithmetic/snimage.sh                   |  2 +-
 tests/arithmetic/where.sh                     |  2 +-
 tests/buildprog/simpleio.c                    |  2 +-
 tests/buildprog/simpleio.sh                   |  2 +-
 tests/convertt/blankch.sh                     |  2 +-
 tests/convertt/fitstojpeg.sh                  |  2 +-
 tests/convertt/fitstojpegcmyk.sh              |  2 +-
 tests/convertt/fitstopdf.sh                   |  2 +-
 tests/convertt/fitstotxt.sh                   |  2 +-
 tests/convertt/jpegtofits.sh                  |  2 +-
 tests/convertt/jpegtotxt.sh                   |  2 +-
 tests/convolve/frequency.sh                   |  2 +-
 tests/convolve/psf-match.sh                   |  2 +-
 tests/convolve/spatial.sh                     |  2 +-
 tests/convolve/spectrum-1d.sh                 |  2 +-
 tests/cosmiccal/simpletest.sh                 |  2 +-
 tests/crop/cat.txt                            |  2 +-
 tests/crop/imgcat.sh                          |  2 +-
 tests/crop/imgcenter.sh                       |  2 +-
 tests/crop/imgcenternoblank.sh                |  2 +-
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 tests/crop/imgpolygonout.sh                   |  2 +-
 tests/crop/section.sh                         |  2 +-
 tests/crop/wcscat.sh                          |  2 +-
 tests/crop/wcscenter.sh                       |  2 +-
 tests/crop/wcspolygon.sh                      |  2 +-
 tests/during-dev.sh                           |  2 +-
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 tests/lib/multithread.c                       |  2 +-
 tests/lib/multithread.sh                      |  2 +-
 tests/lib/versioncxx.cpp                      |  2 +-
 tests/lib/versioncxx.sh                       |  2 +-
 tests/match/kdtree-internal.sh                |  2 +-
 tests/match/kdtree-separate.sh                |  2 +-
 tests/match/merged-cols.sh                    |  2 +-
 tests/match/positions-1.txt                   |  2 +-
 tests/match/positions-2.txt                   |  2 +-
 tests/match/sort-based.sh                     |  2 +-
 tests/mkcatalog/aperturephot.sh               |  2 +-
 tests/mkcatalog/detections.sh                 |  2 +-
 tests/mkcatalog/objects-clumps.sh             |  2 +-
 tests/mknoise/addnoise.sh                     |  2 +-
 tests/mkprof/clearcanvas.sh                   |  2 +-
 tests/mkprof/clearcanvas.txt                  |  2 +-
 tests/mkprof/ellipticalmasks.sh               |  2 +-
 tests/mkprof/ellipticalmasks.txt              |  2 +-
 tests/mkprof/mkprofcat1.txt                   |  2 +-
 tests/mkprof/mkprofcat2.txt                   |  2 +-
 tests/mkprof/mkprofcat3.txt                   |  2 +-
 tests/mkprof/mkprofcat4.txt                   |  2 +-
 tests/mkprof/mosaic1.sh                       |  2 +-
 tests/mkprof/mosaic2.sh                       |  2 +-
 tests/mkprof/mosaic3.sh                       |  2 +-
 tests/mkprof/mosaic4.sh                       |  2 +-
 tests/mkprof/radeccat.sh                      |  2 +-
 tests/mkprof/radeccat.txt                     |  2 +-
 tests/noisechisel/noisechisel.sh              |  2 +-
 tests/prepconf.sh                             |  2 +-
 tests/script/psf-stamp.sh                     |  2 +-
 tests/script/radial-profile.sh                |  2 +-
 tests/script/sort-by-night.sh                 |  2 +-
 tests/segment/segment.sh                      |  2 +-
 tests/statistics/basicstats.sh                |  2 +-
 tests/statistics/estimate_sky.sh              |  2 +-
 tests/statistics/fitting-data.txt             |  2 +-
 tests/statistics/fitting-polynomial-robust.sh |  2 +-
 tests/statistics/from-stdin.sh                |  2 +-
 tests/statistics/stdin-input.txt              |  2 +-
 tests/table/fits-ascii-to-txt.sh              |  2 +-
 tests/table/fits-binary-to-txt.sh             |  2 +-
 tests/table/sexagesimal-to-deg.sh             |  2 +-
 tests/table/table.txt                         |  2 +-
 tests/table/txt-to-fits-ascii.sh              |  2 +-
 tests/table/txt-to-fits-binary.sh             |  2 +-
 tests/warp/homographic.sh                     |  2 +-
 tests/warp/warp_scale.sh                      |  2 +-
 509 files changed, 541 insertions(+), 541 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b6a27f39..e01c19d4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1118,7 +1118,7 @@
 ;; coding: utf-8
 ;; End:
 
- Copyright (C) 2015-2022 Free Software Foundation, Inc.
+ Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
  This file is part of GNU Astronomy Utitlies (Gnuastro).
 
diff --git a/Makefile.am b/Makefile.am
index dc48dae5..b7c235b6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/NEWS b/NEWS
index bbb9e384..51538220 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 GNU Astronomy Utilities NEWS                          -*- outline -*-
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 
@@ -3896,7 +3896,7 @@ See the end of the file for license conditions.
 
 
 * Copyright notice
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/README b/README
index af87b526..22cd08ef 100644
--- a/README
+++ b/README
@@ -1,7 +1,7 @@
 GNU Astronomy Utilities
 =======================
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 GNU Astronomy Utilities (Gnuastro) is an official GNU package of programs
@@ -296,7 +296,7 @@ bug for a shorter and more relevant list to look into.
 
 Copyright information
 ---------------------
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/README-hacking b/README-hacking
index 0618c097..cb0627b5 100644
--- a/README-hacking
+++ b/README-hacking
@@ -1,7 +1,7 @@
 Hacking into GNU Astronomy Utilities
 ====================================
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 This file is intended for those who are building and installing the version
@@ -114,7 +114,7 @@ be sure to keep this file where ever you want to run 
'bootstrap'.
 Copyright information
 ---------------------
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/THANKS b/THANKS
index fd87a883..71ec8689 100644
--- a/THANKS
+++ b/THANKS
@@ -1,7 +1,7 @@
 GNU Astronomy Utilities Acknowledgments
 =======================================
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 The following people and institutions who contributed to Gnuastro
@@ -161,7 +161,7 @@ Host institutions of Gnuastro's developers.
 Copyright
 ---------
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/bin/TEMPLATE/Makefile.am b/bin/TEMPLATE/Makefile.am
index 38831e19..bbf6bfa3 100644
--- a/bin/TEMPLATE/Makefile.am
+++ b/bin/TEMPLATE/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2016-2022 Free Software Foundation, Inc.
+## Copyright (C) 2016-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/TEMPLATE/TEMPLATE.c b/bin/TEMPLATE/TEMPLATE.c
index e096b66a..ace4e91f 100644
--- a/bin/TEMPLATE/TEMPLATE.c
+++ b/bin/TEMPLATE/TEMPLATE.c
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/TEMPLATE.h b/bin/TEMPLATE/TEMPLATE.h
index 96a1ab90..b2e6e470 100644
--- a/bin/TEMPLATE/TEMPLATE.h
+++ b/bin/TEMPLATE/TEMPLATE.h
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/args.h b/bin/TEMPLATE/args.h
index 582838f0..8f252989 100644
--- a/bin/TEMPLATE/args.h
+++ b/bin/TEMPLATE/args.h
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/astTEMPLATE.conf b/bin/TEMPLATE/astTEMPLATE.conf
index 95bc01be..ee44f257 100644
--- a/bin/TEMPLATE/astTEMPLATE.conf
+++ b/bin/TEMPLATE/astTEMPLATE.conf
@@ -12,7 +12,7 @@
 #  $ info astTEMPLATE                    # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/TEMPLATE/authors-cite.h b/bin/TEMPLATE/authors-cite.h
index 969471ed..b03391e1 100644
--- a/bin/TEMPLATE/authors-cite.h
+++ b/bin/TEMPLATE/authors-cite.h
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/main.c b/bin/TEMPLATE/main.c
index 018a785f..98ca5670 100644
--- a/bin/TEMPLATE/main.c
+++ b/bin/TEMPLATE/main.c
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/main.h b/bin/TEMPLATE/main.h
index ad90f5cc..17cf0c69 100644
--- a/bin/TEMPLATE/main.h
+++ b/bin/TEMPLATE/main.h
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/ui.c b/bin/TEMPLATE/ui.c
index 1cb2e769..bd0e9f11 100644
--- a/bin/TEMPLATE/ui.c
+++ b/bin/TEMPLATE/ui.c
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/TEMPLATE/ui.h b/bin/TEMPLATE/ui.h
index eb45b8de..261093db 100644
--- a/bin/TEMPLATE/ui.h
+++ b/bin/TEMPLATE/ui.h
@@ -5,7 +5,7 @@ TEMPLATE is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/Makefile.am b/bin/arithmetic/Makefile.am
index 9a51ebd3..70fb0b25 100644
--- a/bin/arithmetic/Makefile.am
+++ b/bin/arithmetic/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/arithmetic/args.h b/bin/arithmetic/args.h
index dfaf3967..1b1edcdc 100644
--- a/bin/arithmetic/args.h
+++ b/bin/arithmetic/args.h
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/arithmetic.c b/bin/arithmetic/arithmetic.c
index c3f49023..9fe08753 100644
--- a/bin/arithmetic/arithmetic.c
+++ b/bin/arithmetic/arithmetic.c
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/arithmetic.h b/bin/arithmetic/arithmetic.h
index 3a15f45a..b82254ba 100644
--- a/bin/arithmetic/arithmetic.h
+++ b/bin/arithmetic/arithmetic.h
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/astarithmetic-complete.bash 
b/bin/arithmetic/astarithmetic-complete.bash
index 362ef1f4..6069b4b2 100644
--- a/bin/arithmetic/astarithmetic-complete.bash
+++ b/bin/arithmetic/astarithmetic-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/arithmetic/astarithmetic.conf 
b/bin/arithmetic/astarithmetic.conf
index 380ea5a3..1bfa57d8 100644
--- a/bin/arithmetic/astarithmetic.conf
+++ b/bin/arithmetic/astarithmetic.conf
@@ -12,7 +12,7 @@
 #  $ info astarithmetic                  # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/arithmetic/authors-cite.h b/bin/arithmetic/authors-cite.h
index 47559dcc..38365381 100644
--- a/bin/arithmetic/authors-cite.h
+++ b/bin/arithmetic/authors-cite.h
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/main.c b/bin/arithmetic/main.c
index f95e4468..af34df13 100644
--- a/bin/arithmetic/main.c
+++ b/bin/arithmetic/main.c
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/main.h b/bin/arithmetic/main.h
index 813b719b..6283bd82 100644
--- a/bin/arithmetic/main.h
+++ b/bin/arithmetic/main.h
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/operands.c b/bin/arithmetic/operands.c
index ebf00b90..2f02024b 100644
--- a/bin/arithmetic/operands.c
+++ b/bin/arithmetic/operands.c
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/operands.h b/bin/arithmetic/operands.h
index b71d3d8b..5fa933d9 100644
--- a/bin/arithmetic/operands.h
+++ b/bin/arithmetic/operands.h
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/ui.c b/bin/arithmetic/ui.c
index 1a42fbf4..e3ecbd33 100644
--- a/bin/arithmetic/ui.c
+++ b/bin/arithmetic/ui.c
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/arithmetic/ui.h b/bin/arithmetic/ui.h
index 8ed295a2..760731ef 100644
--- a/bin/arithmetic/ui.h
+++ b/bin/arithmetic/ui.h
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/Makefile.am b/bin/buildprog/Makefile.am
index 1fd73d4f..a330dadb 100644
--- a/bin/buildprog/Makefile.am
+++ b/bin/buildprog/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2017-2022 Free Software Foundation, Inc.
+## Copyright (C) 2017-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/buildprog/args.h b/bin/buildprog/args.h
index ae2e128e..f0aecce7 100644
--- a/bin/buildprog/args.h
+++ b/bin/buildprog/args.h
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/astbuildprog-complete.bash 
b/bin/buildprog/astbuildprog-complete.bash
index 964430b6..f2d1d320 100644
--- a/bin/buildprog/astbuildprog-complete.bash
+++ b/bin/buildprog/astbuildprog-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/buildprog/astbuildprog.conf.in 
b/bin/buildprog/astbuildprog.conf.in
index d0e4ce93..9673b2c6 100644
--- a/bin/buildprog/astbuildprog.conf.in
+++ b/bin/buildprog/astbuildprog.conf.in
@@ -12,7 +12,7 @@
 #  $ info astbuildprog                   # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/buildprog/authors-cite.h b/bin/buildprog/authors-cite.h
index 4d79efbf..7d1c7017 100644
--- a/bin/buildprog/authors-cite.h
+++ b/bin/buildprog/authors-cite.h
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/buildprog.c b/bin/buildprog/buildprog.c
index 90908786..3715eb4f 100644
--- a/bin/buildprog/buildprog.c
+++ b/bin/buildprog/buildprog.c
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/buildprog.h b/bin/buildprog/buildprog.h
index de86b097..3a13a148 100644
--- a/bin/buildprog/buildprog.h
+++ b/bin/buildprog/buildprog.h
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/main.c b/bin/buildprog/main.c
index 8d78f2df..a1ae1d8b 100644
--- a/bin/buildprog/main.c
+++ b/bin/buildprog/main.c
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/main.h b/bin/buildprog/main.h
index 56ed9c8c..c05e1ee8 100644
--- a/bin/buildprog/main.h
+++ b/bin/buildprog/main.h
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/ui.c b/bin/buildprog/ui.c
index a6be712f..5a56f734 100644
--- a/bin/buildprog/ui.c
+++ b/bin/buildprog/ui.c
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/buildprog/ui.h b/bin/buildprog/ui.h
index a9db3adf..2ec8d9af 100644
--- a/bin/buildprog/ui.h
+++ b/bin/buildprog/ui.h
@@ -5,7 +5,7 @@ BuildProgram is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/completion.bash.in b/bin/completion.bash.in
index 2c0fea6f..99cf990b 100644
--- a/bin/completion.bash.in
+++ b/bin/completion.bash.in
@@ -39,7 +39,7 @@
 #     Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 # Contributing author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/convertt/Makefile.am b/bin/convertt/Makefile.am
index 586c971e..b01ad0f9 100644
--- a/bin/convertt/Makefile.am
+++ b/bin/convertt/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/convertt/args.h b/bin/convertt/args.h
index 73215c05..e3982db7 100644
--- a/bin/convertt/args.h
+++ b/bin/convertt/args.h
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/astconvertt-complete.bash 
b/bin/convertt/astconvertt-complete.bash
index f117d239..435967b5 100644
--- a/bin/convertt/astconvertt-complete.bash
+++ b/bin/convertt/astconvertt-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/convertt/astconvertt.conf b/bin/convertt/astconvertt.conf
index be8f48b1..e23ec6d9 100644
--- a/bin/convertt/astconvertt.conf
+++ b/bin/convertt/astconvertt.conf
@@ -12,7 +12,7 @@
 #  $ info astconvertt                    # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/convertt/authors-cite.h b/bin/convertt/authors-cite.h
index 74f5812a..92e95b49 100644
--- a/bin/convertt/authors-cite.h
+++ b/bin/convertt/authors-cite.h
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/color.c b/bin/convertt/color.c
index 8259cb73..3a4190ab 100644
--- a/bin/convertt/color.c
+++ b/bin/convertt/color.c
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/color.h b/bin/convertt/color.h
index 10c3b2f9..c295f20d 100644
--- a/bin/convertt/color.h
+++ b/bin/convertt/color.h
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/convertt.c b/bin/convertt/convertt.c
index 05492857..4038dd69 100644
--- a/bin/convertt/convertt.c
+++ b/bin/convertt/convertt.c
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/convertt.h b/bin/convertt/convertt.h
index efc8dcd6..3b65d682 100644
--- a/bin/convertt/convertt.h
+++ b/bin/convertt/convertt.h
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/main.c b/bin/convertt/main.c
index 48a7829b..17a2d0b8 100644
--- a/bin/convertt/main.c
+++ b/bin/convertt/main.c
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/main.h b/bin/convertt/main.h
index f041f229..d07896f7 100644
--- a/bin/convertt/main.h
+++ b/bin/convertt/main.h
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/ui.c b/bin/convertt/ui.c
index 8e8c8e8d..45871ad5 100644
--- a/bin/convertt/ui.c
+++ b/bin/convertt/ui.c
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convertt/ui.h b/bin/convertt/ui.h
index 991e6bef..888deaab 100644
--- a/bin/convertt/ui.h
+++ b/bin/convertt/ui.h
@@ -5,7 +5,7 @@ ConvertType is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/Makefile.am b/bin/convolve/Makefile.am
index fcd5e563..a0e54d7a 100644
--- a/bin/convolve/Makefile.am
+++ b/bin/convolve/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/convolve/args.h b/bin/convolve/args.h
index 6a5f7f4e..04c4d605 100644
--- a/bin/convolve/args.h
+++ b/bin/convolve/args.h
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/astconvolve-complete.bash 
b/bin/convolve/astconvolve-complete.bash
index cea7f1d5..40c6eeb0 100644
--- a/bin/convolve/astconvolve-complete.bash
+++ b/bin/convolve/astconvolve-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/convolve/astconvolve.conf b/bin/convolve/astconvolve.conf
index 9de75574..b44aa024 100644
--- a/bin/convolve/astconvolve.conf
+++ b/bin/convolve/astconvolve.conf
@@ -12,7 +12,7 @@
 #  $ info astconvolve                    # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/convolve/authors-cite.h b/bin/convolve/authors-cite.h
index d488df82..62e17bdb 100644
--- a/bin/convolve/authors-cite.h
+++ b/bin/convolve/authors-cite.h
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/convolve.c b/bin/convolve/convolve.c
index 4cd1b295..4a34027e 100644
--- a/bin/convolve/convolve.c
+++ b/bin/convolve/convolve.c
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/convolve.h b/bin/convolve/convolve.h
index d03805d2..c3e91c32 100644
--- a/bin/convolve/convolve.h
+++ b/bin/convolve/convolve.h
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/main.c b/bin/convolve/main.c
index f9bb91e7..6fc3b42e 100644
--- a/bin/convolve/main.c
+++ b/bin/convolve/main.c
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/main.h b/bin/convolve/main.h
index 57e72ccf..bbab8221 100644
--- a/bin/convolve/main.h
+++ b/bin/convolve/main.h
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/ui.c b/bin/convolve/ui.c
index c9517592..38d3d99a 100644
--- a/bin/convolve/ui.c
+++ b/bin/convolve/ui.c
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/convolve/ui.h b/bin/convolve/ui.h
index 4fff15b5..888f93c8 100644
--- a/bin/convolve/ui.h
+++ b/bin/convolve/ui.h
@@ -5,7 +5,7 @@ Convolve is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/Makefile.am b/bin/cosmiccal/Makefile.am
index 12eb2dd4..e4aeb78c 100644
--- a/bin/cosmiccal/Makefile.am
+++ b/bin/cosmiccal/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2016-2022 Free Software Foundation, Inc.
+## Copyright (C) 2016-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/cosmiccal/args.h b/bin/cosmiccal/args.h
index edd0f144..4bb404c0 100644
--- a/bin/cosmiccal/args.h
+++ b/bin/cosmiccal/args.h
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/astcosmiccal-complete.bash 
b/bin/cosmiccal/astcosmiccal-complete.bash
index 3ba4f585..a6bab513 100644
--- a/bin/cosmiccal/astcosmiccal-complete.bash
+++ b/bin/cosmiccal/astcosmiccal-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/cosmiccal/astcosmiccal.conf b/bin/cosmiccal/astcosmiccal.conf
index ed8d5ffb..06d9fa88 100644
--- a/bin/cosmiccal/astcosmiccal.conf
+++ b/bin/cosmiccal/astcosmiccal.conf
@@ -12,7 +12,7 @@
 #  $ info astcosmiccal                   # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/cosmiccal/authors-cite.h b/bin/cosmiccal/authors-cite.h
index 6c98fa86..ca795c91 100644
--- a/bin/cosmiccal/authors-cite.h
+++ b/bin/cosmiccal/authors-cite.h
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/cosmiccal.c b/bin/cosmiccal/cosmiccal.c
index d4109355..b7a089a9 100644
--- a/bin/cosmiccal/cosmiccal.c
+++ b/bin/cosmiccal/cosmiccal.c
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/cosmiccal.h b/bin/cosmiccal/cosmiccal.h
index 6cbfd1b1..c5a8d743 100644
--- a/bin/cosmiccal/cosmiccal.h
+++ b/bin/cosmiccal/cosmiccal.h
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/main.c b/bin/cosmiccal/main.c
index 2f5502a4..037f2b3f 100644
--- a/bin/cosmiccal/main.c
+++ b/bin/cosmiccal/main.c
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/main.h b/bin/cosmiccal/main.h
index d103c3ea..e36d4997 100644
--- a/bin/cosmiccal/main.h
+++ b/bin/cosmiccal/main.h
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/ui.c b/bin/cosmiccal/ui.c
index 4ce9766c..b665e085 100644
--- a/bin/cosmiccal/ui.c
+++ b/bin/cosmiccal/ui.c
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/cosmiccal/ui.h b/bin/cosmiccal/ui.h
index 51dd89ba..db92e7da 100644
--- a/bin/cosmiccal/ui.h
+++ b/bin/cosmiccal/ui.h
@@ -5,7 +5,7 @@ CosmicCalculator is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/Makefile.am b/bin/crop/Makefile.am
index 2fd87f94..8f295c3f 100644
--- a/bin/crop/Makefile.am
+++ b/bin/crop/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/crop/args.h b/bin/crop/args.h
index 50152a64..711f409a 100644
--- a/bin/crop/args.h
+++ b/bin/crop/args.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/astcrop-complete.bash b/bin/crop/astcrop-complete.bash
index 152cb4c9..b31dff0d 100644
--- a/bin/crop/astcrop-complete.bash
+++ b/bin/crop/astcrop-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/crop/astcrop.conf b/bin/crop/astcrop.conf
index 1d33a972..2edb6bbb 100644
--- a/bin/crop/astcrop.conf
+++ b/bin/crop/astcrop.conf
@@ -12,7 +12,7 @@
 #  $ info astcrop                        # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/crop/authors-cite.h b/bin/crop/authors-cite.h
index d0cc39cb..4460cabd 100644
--- a/bin/crop/authors-cite.h
+++ b/bin/crop/authors-cite.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/crop.c b/bin/crop/crop.c
index 1f28ecee..e64dd365 100644
--- a/bin/crop/crop.c
+++ b/bin/crop/crop.c
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/crop.h b/bin/crop/crop.h
index b577907a..ca8cc9af 100644
--- a/bin/crop/crop.h
+++ b/bin/crop/crop.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/main.c b/bin/crop/main.c
index 1c20c6e3..57005261 100644
--- a/bin/crop/main.c
+++ b/bin/crop/main.c
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/main.h b/bin/crop/main.h
index 706d7cdf..f85d2cc3 100644
--- a/bin/crop/main.h
+++ b/bin/crop/main.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/onecrop.c b/bin/crop/onecrop.c
index 3abbd968..708f1b1b 100644
--- a/bin/crop/onecrop.c
+++ b/bin/crop/onecrop.c
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/onecrop.h b/bin/crop/onecrop.h
index 66ad5663..b69150be 100644
--- a/bin/crop/onecrop.h
+++ b/bin/crop/onecrop.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/ui.c b/bin/crop/ui.c
index eb5d0417..b2bf7da0 100644
--- a/bin/crop/ui.c
+++ b/bin/crop/ui.c
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/ui.h b/bin/crop/ui.h
index 056c76d5..cfb5021d 100644
--- a/bin/crop/ui.h
+++ b/bin/crop/ui.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/wcsmode.c b/bin/crop/wcsmode.c
index 420d2e6b..a3e479d2 100644
--- a/bin/crop/wcsmode.c
+++ b/bin/crop/wcsmode.c
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/crop/wcsmode.h b/bin/crop/wcsmode.h
index dc852243..5d24f07d 100644
--- a/bin/crop/wcsmode.h
+++ b/bin/crop/wcsmode.h
@@ -5,7 +5,7 @@ Crop is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/Makefile.am b/bin/fits/Makefile.am
index c66f85fe..87c92bd9 100644
--- a/bin/fits/Makefile.am
+++ b/bin/fits/Makefile.am
@@ -4,7 +4,7 @@
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
 ##     Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/fits/args.h b/bin/fits/args.h
index ec9d4cc6..fca8f951 100644
--- a/bin/fits/args.h
+++ b/bin/fits/args.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/astfits-complete.bash b/bin/fits/astfits-complete.bash
index f69a1028..718fbbe0 100644
--- a/bin/fits/astfits-complete.bash
+++ b/bin/fits/astfits-complete.bash
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/fits/astfits.conf b/bin/fits/astfits.conf
index 346cdf46..05fa7eef 100644
--- a/bin/fits/astfits.conf
+++ b/bin/fits/astfits.conf
@@ -12,7 +12,7 @@
 #  $ info astfits                        # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/fits/authors-cite.h b/bin/fits/authors-cite.h
index f0c59992..1e5ec3f8 100644
--- a/bin/fits/authors-cite.h
+++ b/bin/fits/authors-cite.h
@@ -5,7 +5,7 @@ Fits is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/extension.c b/bin/fits/extension.c
index d63d8598..a4f2641b 100644
--- a/bin/fits/extension.c
+++ b/bin/fits/extension.c
@@ -5,7 +5,7 @@ Fits is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/extension.h b/bin/fits/extension.h
index aa0ae1ae..f68fb409 100644
--- a/bin/fits/extension.h
+++ b/bin/fits/extension.h
@@ -5,7 +5,7 @@ Fits is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/fits.c b/bin/fits/fits.c
index a5158ab4..9c3e4475 100644
--- a/bin/fits/fits.c
+++ b/bin/fits/fits.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/fits.h b/bin/fits/fits.h
index 74eacea1..f210587c 100644
--- a/bin/fits/fits.h
+++ b/bin/fits/fits.h
@@ -5,7 +5,7 @@ Fits is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/keywords.c b/bin/fits/keywords.c
index 95349304..c6afff2e 100644
--- a/bin/fits/keywords.c
+++ b/bin/fits/keywords.c
@@ -5,7 +5,7 @@ Fits is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/keywords.h b/bin/fits/keywords.h
index 2e1038df..30cb1d44 100644
--- a/bin/fits/keywords.h
+++ b/bin/fits/keywords.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/main.c b/bin/fits/main.c
index 19effbed..c0f0dd0a 100644
--- a/bin/fits/main.c
+++ b/bin/fits/main.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/main.h b/bin/fits/main.h
index cd1e3175..4027ab8b 100644
--- a/bin/fits/main.h
+++ b/bin/fits/main.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/meta.c b/bin/fits/meta.c
index 5e560e0b..8625a26b 100644
--- a/bin/fits/meta.c
+++ b/bin/fits/meta.c
@@ -6,7 +6,7 @@ Corresponding author:
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/meta.h b/bin/fits/meta.h
index 10767ae7..1d49f531 100644
--- a/bin/fits/meta.h
+++ b/bin/fits/meta.h
@@ -6,7 +6,7 @@ Original author:
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2022      Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/ui.c b/bin/fits/ui.c
index 74505e50..02c78070 100644
--- a/bin/fits/ui.c
+++ b/bin/fits/ui.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/fits/ui.h b/bin/fits/ui.h
index 8e53a4f4..34c9477c 100644
--- a/bin/fits/ui.h
+++ b/bin/fits/ui.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/gnuastro.conf b/bin/gnuastro.conf
index 623b6329..967105cc 100644
--- a/bin/gnuastro.conf
+++ b/bin/gnuastro.conf
@@ -12,7 +12,7 @@
 # NOTE I:  All counting is from zero, not one.
 # NOTE II: Lines starting with '#' are ignored.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/bin/match/Makefile.am b/bin/match/Makefile.am
index 5a4fdfb1..2e6d7d79 100644
--- a/bin/match/Makefile.am
+++ b/bin/match/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2017-2022 Free Software Foundation, Inc.
+## Copyright (C) 2017-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/match/args.h b/bin/match/args.h
index 6bfaee64..c6ed67fb 100644
--- a/bin/match/args.h
+++ b/bin/match/args.h
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/astmatch.conf b/bin/match/astmatch.conf
index a6b06703..a0e11362 100644
--- a/bin/match/astmatch.conf
+++ b/bin/match/astmatch.conf
@@ -12,7 +12,7 @@
 #  $ info astmatch                       # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/match/authors-cite.h b/bin/match/authors-cite.h
index ba76d12d..0dac9741 100644
--- a/bin/match/authors-cite.h
+++ b/bin/match/authors-cite.h
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/debug-1.sh b/bin/match/debug-1.sh
index 5c83df9f..07952852 100755
--- a/bin/match/debug-1.sh
+++ b/bin/match/debug-1.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/match/main.c b/bin/match/main.c
index c2bcd8da..cb8bc011 100644
--- a/bin/match/main.c
+++ b/bin/match/main.c
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/main.h b/bin/match/main.h
index 5fcb00fa..a027f040 100644
--- a/bin/match/main.h
+++ b/bin/match/main.h
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/match.c b/bin/match/match.c
index ae62e51d..a92bb0cf 100644
--- a/bin/match/match.c
+++ b/bin/match/match.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/match.h b/bin/match/match.h
index acedc2e1..6a1e9923 100644
--- a/bin/match/match.h
+++ b/bin/match/match.h
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/ui.c b/bin/match/ui.c
index 143e9ae5..73753c89 100644
--- a/bin/match/ui.c
+++ b/bin/match/ui.c
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/match/ui.h b/bin/match/ui.h
index e43c11d0..fdd947d3 100644
--- a/bin/match/ui.h
+++ b/bin/match/ui.h
@@ -5,7 +5,7 @@ Match is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/Makefile.am b/bin/mkcatalog/Makefile.am
index 42a362eb..2bca541f 100644
--- a/bin/mkcatalog/Makefile.am
+++ b/bin/mkcatalog/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/mkcatalog/args.h b/bin/mkcatalog/args.h
index 0bb4b96c..37275bdb 100644
--- a/bin/mkcatalog/args.h
+++ b/bin/mkcatalog/args.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/astmkcatalog.conf b/bin/mkcatalog/astmkcatalog.conf
index ce574df6..4d938a8e 100644
--- a/bin/mkcatalog/astmkcatalog.conf
+++ b/bin/mkcatalog/astmkcatalog.conf
@@ -12,7 +12,7 @@
 #  $ info astmkcatalog                   # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/mkcatalog/authors-cite.h b/bin/mkcatalog/authors-cite.h
index 9bd409fc..757ed599 100644
--- a/bin/mkcatalog/authors-cite.h
+++ b/bin/mkcatalog/authors-cite.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/columns.c b/bin/mkcatalog/columns.c
index a354520f..1f39902c 100644
--- a/bin/mkcatalog/columns.c
+++ b/bin/mkcatalog/columns.c
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/columns.h b/bin/mkcatalog/columns.h
index 8ca42f52..67441103 100644
--- a/bin/mkcatalog/columns.h
+++ b/bin/mkcatalog/columns.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/main.c b/bin/mkcatalog/main.c
index 5be96b3a..357865a7 100644
--- a/bin/mkcatalog/main.c
+++ b/bin/mkcatalog/main.c
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/main.h b/bin/mkcatalog/main.h
index 979753c0..146c99f7 100644
--- a/bin/mkcatalog/main.h
+++ b/bin/mkcatalog/main.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/mkcatalog.c b/bin/mkcatalog/mkcatalog.c
index 96b9addc..04b79913 100644
--- a/bin/mkcatalog/mkcatalog.c
+++ b/bin/mkcatalog/mkcatalog.c
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/mkcatalog.h b/bin/mkcatalog/mkcatalog.h
index 2db5ffe6..d2604bab 100644
--- a/bin/mkcatalog/mkcatalog.h
+++ b/bin/mkcatalog/mkcatalog.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/parse.c b/bin/mkcatalog/parse.c
index 2f21184f..09ffa876 100644
--- a/bin/mkcatalog/parse.c
+++ b/bin/mkcatalog/parse.c
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/parse.h b/bin/mkcatalog/parse.h
index bb13961a..1c62254e 100644
--- a/bin/mkcatalog/parse.h
+++ b/bin/mkcatalog/parse.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/ui.c b/bin/mkcatalog/ui.c
index 16d12a14..53526c2b 100644
--- a/bin/mkcatalog/ui.c
+++ b/bin/mkcatalog/ui.c
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/ui.h b/bin/mkcatalog/ui.h
index cffa4cae..81acbde5 100644
--- a/bin/mkcatalog/ui.h
+++ b/bin/mkcatalog/ui.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/upperlimit.c b/bin/mkcatalog/upperlimit.c
index 2676211d..c6dac25e 100644
--- a/bin/mkcatalog/upperlimit.c
+++ b/bin/mkcatalog/upperlimit.c
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkcatalog/upperlimit.h b/bin/mkcatalog/upperlimit.h
index 0b9a7181..d208c5d5 100644
--- a/bin/mkcatalog/upperlimit.h
+++ b/bin/mkcatalog/upperlimit.h
@@ -5,7 +5,7 @@ MakeCatalog is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/Makefile.am b/bin/mknoise/Makefile.am
index 0a5b486f..f3cebb2d 100644
--- a/bin/mknoise/Makefile.am
+++ b/bin/mknoise/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/mknoise/args.h b/bin/mknoise/args.h
index e65d128c..4cafa644 100644
--- a/bin/mknoise/args.h
+++ b/bin/mknoise/args.h
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/astmknoise.conf b/bin/mknoise/astmknoise.conf
index 35c40a0a..5cdec928 100644
--- a/bin/mknoise/astmknoise.conf
+++ b/bin/mknoise/astmknoise.conf
@@ -12,7 +12,7 @@
 #  $ info astmknoise                     # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/mknoise/authors-cite.h b/bin/mknoise/authors-cite.h
index b8183cec..f2e2366a 100644
--- a/bin/mknoise/authors-cite.h
+++ b/bin/mknoise/authors-cite.h
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/main.c b/bin/mknoise/main.c
index eeab53fe..4540dc6e 100644
--- a/bin/mknoise/main.c
+++ b/bin/mknoise/main.c
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/main.h b/bin/mknoise/main.h
index ae70bb3a..18bbe434 100644
--- a/bin/mknoise/main.h
+++ b/bin/mknoise/main.h
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/mknoise.c b/bin/mknoise/mknoise.c
index 0d1303fd..1b316941 100644
--- a/bin/mknoise/mknoise.c
+++ b/bin/mknoise/mknoise.c
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/mknoise.h b/bin/mknoise/mknoise.h
index 3c99bcb6..92a2b741 100644
--- a/bin/mknoise/mknoise.h
+++ b/bin/mknoise/mknoise.h
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/ui.c b/bin/mknoise/ui.c
index 3f396e1d..18da75b4 100644
--- a/bin/mknoise/ui.c
+++ b/bin/mknoise/ui.c
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mknoise/ui.h b/bin/mknoise/ui.h
index e767acd6..bd679378 100644
--- a/bin/mknoise/ui.h
+++ b/bin/mknoise/ui.h
@@ -5,7 +5,7 @@ MakeNoise is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/Makefile.am b/bin/mkprof/Makefile.am
index a980bf49..696ce47c 100644
--- a/bin/mkprof/Makefile.am
+++ b/bin/mkprof/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/mkprof/args.h b/bin/mkprof/args.h
index 0d2e82a1..efa52c63 100644
--- a/bin/mkprof/args.h
+++ b/bin/mkprof/args.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/astmkprof-3d.conf b/bin/mkprof/astmkprof-3d.conf
index a5fc3b1d..386b7f78 100644
--- a/bin/mkprof/astmkprof-3d.conf
+++ b/bin/mkprof/astmkprof-3d.conf
@@ -12,7 +12,7 @@
 #  $ info astmkprof                      # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/mkprof/astmkprof.conf b/bin/mkprof/astmkprof.conf
index 0a94464d..413d6a49 100644
--- a/bin/mkprof/astmkprof.conf
+++ b/bin/mkprof/astmkprof.conf
@@ -12,7 +12,7 @@
 #  $ info astmkprof                      # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/mkprof/authors-cite.h b/bin/mkprof/authors-cite.h
index a38b0354..c5f28617 100644
--- a/bin/mkprof/authors-cite.h
+++ b/bin/mkprof/authors-cite.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/main.c b/bin/mkprof/main.c
index 00930d2a..d42d9e09 100644
--- a/bin/mkprof/main.c
+++ b/bin/mkprof/main.c
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/main.h b/bin/mkprof/main.h
index eb8aad5c..49268431 100644
--- a/bin/mkprof/main.h
+++ b/bin/mkprof/main.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/mkprof.c b/bin/mkprof/mkprof.c
index f31b5e5f..0ca5a398 100644
--- a/bin/mkprof/mkprof.c
+++ b/bin/mkprof/mkprof.c
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/mkprof.h b/bin/mkprof/mkprof.h
index a9b4214c..474f7210 100644
--- a/bin/mkprof/mkprof.h
+++ b/bin/mkprof/mkprof.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/oneprofile.c b/bin/mkprof/oneprofile.c
index 5205dec8..b2556da3 100644
--- a/bin/mkprof/oneprofile.c
+++ b/bin/mkprof/oneprofile.c
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/oneprofile.h b/bin/mkprof/oneprofile.h
index b45a1fa7..daeba3db 100644
--- a/bin/mkprof/oneprofile.h
+++ b/bin/mkprof/oneprofile.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/profiles.c b/bin/mkprof/profiles.c
index 987127b9..68f42416 100644
--- a/bin/mkprof/profiles.c
+++ b/bin/mkprof/profiles.c
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/profiles.h b/bin/mkprof/profiles.h
index acdf58bc..1877205f 100644
--- a/bin/mkprof/profiles.h
+++ b/bin/mkprof/profiles.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/ui.c b/bin/mkprof/ui.c
index c327a0e4..91ec89f1 100644
--- a/bin/mkprof/ui.c
+++ b/bin/mkprof/ui.c
@@ -5,7 +5,7 @@ Arithmetic is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/mkprof/ui.h b/bin/mkprof/ui.h
index 6678115a..8c48c0b2 100644
--- a/bin/mkprof/ui.h
+++ b/bin/mkprof/ui.h
@@ -5,7 +5,7 @@ MakeProfiles is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/Makefile.am b/bin/noisechisel/Makefile.am
index 04593477..70ff6a2f 100644
--- a/bin/noisechisel/Makefile.am
+++ b/bin/noisechisel/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2016-2022 Free Software Foundation, Inc.
+## Copyright (C) 2016-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/noisechisel/args.h b/bin/noisechisel/args.h
index a9614357..a03cb9ff 100644
--- a/bin/noisechisel/args.h
+++ b/bin/noisechisel/args.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/astnoisechisel.conf 
b/bin/noisechisel/astnoisechisel.conf
index cdaa4a56..a6c4a142 100644
--- a/bin/noisechisel/astnoisechisel.conf
+++ b/bin/noisechisel/astnoisechisel.conf
@@ -12,7 +12,7 @@
 #  $ info astnoisechisel                 # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/noisechisel/authors-cite.h b/bin/noisechisel/authors-cite.h
index 7dd1fcb2..6d572dbf 100644
--- a/bin/noisechisel/authors-cite.h
+++ b/bin/noisechisel/authors-cite.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/detection.c b/bin/noisechisel/detection.c
index c86c4cb3..338f6ea2 100644
--- a/bin/noisechisel/detection.c
+++ b/bin/noisechisel/detection.c
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/detection.h b/bin/noisechisel/detection.h
index 0b5bc94c..f7d9cc5c 100644
--- a/bin/noisechisel/detection.h
+++ b/bin/noisechisel/detection.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/kernel-2d.h b/bin/noisechisel/kernel-2d.h
index 31279527..4dcf7703 100644
--- a/bin/noisechisel/kernel-2d.h
+++ b/bin/noisechisel/kernel-2d.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/main.c b/bin/noisechisel/main.c
index 0b852837..18d2f260 100644
--- a/bin/noisechisel/main.c
+++ b/bin/noisechisel/main.c
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/main.h b/bin/noisechisel/main.h
index 64446071..36edd1b2 100644
--- a/bin/noisechisel/main.h
+++ b/bin/noisechisel/main.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/noisechisel.c b/bin/noisechisel/noisechisel.c
index 659e4dc0..e8e8c37a 100644
--- a/bin/noisechisel/noisechisel.c
+++ b/bin/noisechisel/noisechisel.c
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/noisechisel.h b/bin/noisechisel/noisechisel.h
index f890eb88..1beebd2f 100644
--- a/bin/noisechisel/noisechisel.h
+++ b/bin/noisechisel/noisechisel.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/sky.c b/bin/noisechisel/sky.c
index 86f81905..e0383d17 100644
--- a/bin/noisechisel/sky.c
+++ b/bin/noisechisel/sky.c
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/sky.h b/bin/noisechisel/sky.h
index 4ab8459d..f65237a9 100644
--- a/bin/noisechisel/sky.h
+++ b/bin/noisechisel/sky.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/threshold.c b/bin/noisechisel/threshold.c
index b3364849..094ad03b 100644
--- a/bin/noisechisel/threshold.c
+++ b/bin/noisechisel/threshold.c
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/threshold.h b/bin/noisechisel/threshold.h
index cc39dc2a..d37b2941 100644
--- a/bin/noisechisel/threshold.h
+++ b/bin/noisechisel/threshold.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/ui.c b/bin/noisechisel/ui.c
index bd2a725f..c73d6bb0 100644
--- a/bin/noisechisel/ui.c
+++ b/bin/noisechisel/ui.c
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/noisechisel/ui.h b/bin/noisechisel/ui.h
index 51ab394d..c07e635d 100644
--- a/bin/noisechisel/ui.h
+++ b/bin/noisechisel/ui.h
@@ -5,7 +5,7 @@ NoiseChisel is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/Makefile.am b/bin/query/Makefile.am
index fd2a1e98..56dc6b44 100644
--- a/bin/query/Makefile.am
+++ b/bin/query/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2016-2022 Free Software Foundation, Inc.
+## Copyright (C) 2016-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/query/args.h b/bin/query/args.h
index c524005b..ec4d1071 100644
--- a/bin/query/args.h
+++ b/bin/query/args.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/astquery.conf b/bin/query/astquery.conf
index b318219f..3cb3eb86 100644
--- a/bin/query/astquery.conf
+++ b/bin/query/astquery.conf
@@ -12,7 +12,7 @@
 #  $ info astquery                       # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/query/astron.c b/bin/query/astron.c
index cfd03fbf..ad408e73 100644
--- a/bin/query/astron.c
+++ b/bin/query/astron.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/astron.h b/bin/query/astron.h
index 3c91c254..e5015040 100644
--- a/bin/query/astron.h
+++ b/bin/query/astron.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/authors-cite.h b/bin/query/authors-cite.h
index ee3672a9..eeaf7b4f 100644
--- a/bin/query/authors-cite.h
+++ b/bin/query/authors-cite.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/gaia.c b/bin/query/gaia.c
index 156dfc07..b09bdab6 100644
--- a/bin/query/gaia.c
+++ b/bin/query/gaia.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/gaia.h b/bin/query/gaia.h
index b65d9b7e..2e19b51f 100644
--- a/bin/query/gaia.h
+++ b/bin/query/gaia.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/main.c b/bin/query/main.c
index ee64d5ef..1b066c16 100644
--- a/bin/query/main.c
+++ b/bin/query/main.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/main.h b/bin/query/main.h
index 2a3a172d..6a2e5244 100644
--- a/bin/query/main.h
+++ b/bin/query/main.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/ned.c b/bin/query/ned.c
index 8d9c7d9a..673131be 100644
--- a/bin/query/ned.c
+++ b/bin/query/ned.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/ned.h b/bin/query/ned.h
index e10ab201..7e6978c9 100644
--- a/bin/query/ned.h
+++ b/bin/query/ned.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/query.c b/bin/query/query.c
index 46067e96..f37c7751 100644
--- a/bin/query/query.c
+++ b/bin/query/query.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/query.h b/bin/query/query.h
index 965d8834..802bbd42 100644
--- a/bin/query/query.h
+++ b/bin/query/query.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/tap.c b/bin/query/tap.c
index e0c61792..58c44f81 100644
--- a/bin/query/tap.c
+++ b/bin/query/tap.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/tap.h b/bin/query/tap.h
index 96fef477..a287c5ef 100644
--- a/bin/query/tap.h
+++ b/bin/query/tap.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/ui.c b/bin/query/ui.c
index 7dbdb9e9..e0e2f3d3 100644
--- a/bin/query/ui.c
+++ b/bin/query/ui.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/ui.h b/bin/query/ui.h
index da93e8b7..6dadc0c8 100644
--- a/bin/query/ui.h
+++ b/bin/query/ui.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/vizier.c b/bin/query/vizier.c
index 5379f1dd..b62d7746 100644
--- a/bin/query/vizier.c
+++ b/bin/query/vizier.c
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/query/vizier.h b/bin/query/vizier.h
index e4d2631d..97f60c4e 100644
--- a/bin/query/vizier.h
+++ b/bin/query/vizier.h
@@ -5,7 +5,7 @@ Query is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-202 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/script/Makefile.am b/bin/script/Makefile.am
index b46760dc..1f3425bf 100644
--- a/bin/script/Makefile.am
+++ b/bin/script/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2019-2022 Free Software Foundation, Inc.
+## Copyright (C) 2019-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/script/ds9-region.in b/bin/script/ds9-region.in
index fa1dd2ca..9b939252 100644
--- a/bin/script/ds9-region.in
+++ b/bin/script/ds9-region.in
@@ -7,7 +7,7 @@
 # Contributing author(s):
 #     Samane Raji <samaneraji@protonmail.com>
 #     Raul Infante-Sainz <infantesainz@gmail.com>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -120,7 +120,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/fits-view.desktop.in b/bin/script/fits-view.desktop.in
index 36a087bc..6d30ada5 100644
--- a/bin/script/fits-view.desktop.in
+++ b/bin/script/fits-view.desktop.in
@@ -33,7 +33,7 @@
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing authors:
 #     Sepideh Eskandarlou <sepideh.eskandarlou@gmail.com>
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 #
 # This '.desktop' file is part of Gnuastro. Gnuastro is free software: you
 # can redistribute it and/or modify it under the terms of the GNU General
diff --git a/bin/script/fits-view.in b/bin/script/fits-view.in
index bd49e615..a04e0151 100644
--- a/bin/script/fits-view.in
+++ b/bin/script/fits-view.in
@@ -9,7 +9,7 @@
 # All author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 #     Sepideh Eskandarlou <sepideh.eskandarlou@gmail.com>
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -124,7 +124,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/psf-scale-factor.in b/bin/script/psf-scale-factor.in
index f85722c6..7ec0ae7c 100644
--- a/bin/script/psf-scale-factor.in
+++ b/bin/script/psf-scale-factor.in
@@ -9,7 +9,7 @@
 #   Raul Infante-Sainz <infantesainz@gmail.com>
 # Contributing author(s):
 #   Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -128,7 +128,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/psf-select-stars.in b/bin/script/psf-select-stars.in
index 5abcf7b3..e9c90668 100644
--- a/bin/script/psf-select-stars.in
+++ b/bin/script/psf-select-stars.in
@@ -16,7 +16,7 @@
 #     Raul Infante-Sainz <infantesainz@gmail.com>
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 #     Carlos Morales-Socorro <cmorsoc@gmail.com>
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -143,7 +143,7 @@ EOF
 print_version() {
      cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/psf-stamp.in b/bin/script/psf-stamp.in
index 9937c0e2..a456a9b0 100644
--- a/bin/script/psf-stamp.in
+++ b/bin/script/psf-stamp.in
@@ -16,7 +16,7 @@
 #   Mohammad Akhlaghi <mohammad@akhlaghi.org>
 #   Carlos Morales-Socorro <cmorsoc@gmail.com>
 #   Sepideh Eskandarlou <sepideh.eskandarlou@gmail.com>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -141,7 +141,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/psf-subtract.in b/bin/script/psf-subtract.in
index caf50082..eb3ee4f7 100644
--- a/bin/script/psf-subtract.in
+++ b/bin/script/psf-subtract.in
@@ -8,7 +8,7 @@
 # Contributing author(s):
 #   Mohammad Akhlaghi <mohammad@akhlaghi.org>
 #   Zahra Sharbaf <zahra.sharbaf2@gmail.com>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -120,7 +120,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/psf-unite.in b/bin/script/psf-unite.in
index 117a7144..e3f6f822 100644
--- a/bin/script/psf-unite.in
+++ b/bin/script/psf-unite.in
@@ -8,7 +8,7 @@
 # Contributing author(s):
 #   Mohammad Akhlaghi <mohammad@akhlaghi.org>
 #   Carlos Morales-Socorro <cmorsoc@gmail.com>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -122,7 +122,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/radial-profile.in b/bin/script/radial-profile.in
index 2a12bf64..70c9fec0 100644
--- a/bin/script/radial-profile.in
+++ b/bin/script/radial-profile.in
@@ -10,7 +10,7 @@
 #   Zahra Sharbaf <zahra.sharbaf2@gmail.com>
 #   Carlos Morales-Socorro <cmorsoc@gmail.com>
 #   Sepideh Eskandarlou <sepideh.eskandarlou@gmail.com>
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -152,7 +152,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/script/sort-by-night.in b/bin/script/sort-by-night.in
index 0141c355..bd35b9c6 100644
--- a/bin/script/sort-by-night.in
+++ b/bin/script/sort-by-night.in
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -123,7 +123,7 @@ EOF
 print_version() {
     cat <<EOF
 $scriptname (GNU Astronomy Utilities) $version
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 License GPLv3+: GNU General public license version 3 or later.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/bin/segment/Makefile.am b/bin/segment/Makefile.am
index 86b15e1f..f4b54411 100644
--- a/bin/segment/Makefile.am
+++ b/bin/segment/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/segment/args.h b/bin/segment/args.h
index 6420c176..88a22b50 100644
--- a/bin/segment/args.h
+++ b/bin/segment/args.h
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/astsegment.conf b/bin/segment/astsegment.conf
index 5088d10e..7f42c71c 100644
--- a/bin/segment/astsegment.conf
+++ b/bin/segment/astsegment.conf
@@ -12,7 +12,7 @@
 #  $ info astsegment                     # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/segment/authors-cite.h b/bin/segment/authors-cite.h
index 9208300e..46701c86 100644
--- a/bin/segment/authors-cite.h
+++ b/bin/segment/authors-cite.h
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/clumps.c b/bin/segment/clumps.c
index 05797bc2..d0664a71 100644
--- a/bin/segment/clumps.c
+++ b/bin/segment/clumps.c
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/clumps.h b/bin/segment/clumps.h
index 76a4ff0e..b4bc039e 100644
--- a/bin/segment/clumps.h
+++ b/bin/segment/clumps.h
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/kernel-2d.h b/bin/segment/kernel-2d.h
index c124f398..a001d2d9 100644
--- a/bin/segment/kernel-2d.h
+++ b/bin/segment/kernel-2d.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/main.c b/bin/segment/main.c
index 1b6c2d6d..7d611a5e 100644
--- a/bin/segment/main.c
+++ b/bin/segment/main.c
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/main.h b/bin/segment/main.h
index c602b61c..801e2bab 100644
--- a/bin/segment/main.h
+++ b/bin/segment/main.h
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/segment.c b/bin/segment/segment.c
index 08fd40ac..27e958a8 100644
--- a/bin/segment/segment.c
+++ b/bin/segment/segment.c
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/segment.h b/bin/segment/segment.h
index 2aec582b..cf7d3cac 100644
--- a/bin/segment/segment.h
+++ b/bin/segment/segment.h
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/ui.c b/bin/segment/ui.c
index b70e63ea..50e33455 100644
--- a/bin/segment/ui.c
+++ b/bin/segment/ui.c
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/segment/ui.h b/bin/segment/ui.h
index d6809d4c..77a5f88f 100644
--- a/bin/segment/ui.h
+++ b/bin/segment/ui.h
@@ -5,7 +5,7 @@ Segment is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/Makefile.am b/bin/statistics/Makefile.am
index c3d5be2a..456d6b0f 100644
--- a/bin/statistics/Makefile.am
+++ b/bin/statistics/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/statistics/args.h b/bin/statistics/args.h
index f5ed2414..135bea4b 100644
--- a/bin/statistics/args.h
+++ b/bin/statistics/args.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/aststatistics.conf 
b/bin/statistics/aststatistics.conf
index d8d62f8c..8d0e807a 100644
--- a/bin/statistics/aststatistics.conf
+++ b/bin/statistics/aststatistics.conf
@@ -12,7 +12,7 @@
 #  $ info aststatistics                  # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/statistics/authors-cite.h b/bin/statistics/authors-cite.h
index 2a39ef36..4d7953df 100644
--- a/bin/statistics/authors-cite.h
+++ b/bin/statistics/authors-cite.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/contour.c b/bin/statistics/contour.c
index 48693b90..ae0ff2b6 100644
--- a/bin/statistics/contour.c
+++ b/bin/statistics/contour.c
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/contour.h b/bin/statistics/contour.h
index ab9077fd..989ee5ba 100644
--- a/bin/statistics/contour.h
+++ b/bin/statistics/contour.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/main.c b/bin/statistics/main.c
index cea009bb..acb7b8c8 100644
--- a/bin/statistics/main.c
+++ b/bin/statistics/main.c
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/main.h b/bin/statistics/main.h
index 7f63a9a5..0edcc00d 100644
--- a/bin/statistics/main.h
+++ b/bin/statistics/main.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/sky.c b/bin/statistics/sky.c
index f1b8f4cc..b6f83e5d 100644
--- a/bin/statistics/sky.c
+++ b/bin/statistics/sky.c
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/sky.h b/bin/statistics/sky.h
index 72e38c7c..6a27b86c 100644
--- a/bin/statistics/sky.h
+++ b/bin/statistics/sky.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/statistics.c b/bin/statistics/statistics.c
index 3814bf99..71ec832e 100644
--- a/bin/statistics/statistics.c
+++ b/bin/statistics/statistics.c
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/statistics.h b/bin/statistics/statistics.h
index 94b882d8..c7f49c08 100644
--- a/bin/statistics/statistics.h
+++ b/bin/statistics/statistics.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/ui.c b/bin/statistics/ui.c
index 743bf896..8f1a7cc5 100644
--- a/bin/statistics/ui.c
+++ b/bin/statistics/ui.c
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/statistics/ui.h b/bin/statistics/ui.h
index d5175e23..11c9f610 100644
--- a/bin/statistics/ui.h
+++ b/bin/statistics/ui.h
@@ -5,7 +5,7 @@ Statistics is part of GNU Astronomy Utilities (Gnuastro) 
package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/Makefile.am b/bin/table/Makefile.am
index 8608684b..7c258776 100644
--- a/bin/table/Makefile.am
+++ b/bin/table/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2016-2022 Free Software Foundation, Inc.
+## Copyright (C) 2016-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/table/args.h b/bin/table/args.h
index 3c48317d..4c84c765 100644
--- a/bin/table/args.h
+++ b/bin/table/args.h
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/arithmetic.c b/bin/table/arithmetic.c
index a92224ec..5885f871 100644
--- a/bin/table/arithmetic.c
+++ b/bin/table/arithmetic.c
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/arithmetic.h b/bin/table/arithmetic.h
index 47a121b2..652ce137 100644
--- a/bin/table/arithmetic.h
+++ b/bin/table/arithmetic.h
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/asttable-complete.bash b/bin/table/asttable-complete.bash
index 87218b02..608a330b 100644
--- a/bin/table/asttable-complete.bash
+++ b/bin/table/asttable-complete.bash
@@ -5,7 +5,7 @@
 #     Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 # Contributing author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/bin/table/asttable.conf b/bin/table/asttable.conf
index f9697279..be48910c 100644
--- a/bin/table/asttable.conf
+++ b/bin/table/asttable.conf
@@ -12,7 +12,7 @@
 #  $ info asttable                       # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/table/authors-cite.h b/bin/table/authors-cite.h
index 62a6c490..6750c964 100644
--- a/bin/table/authors-cite.h
+++ b/bin/table/authors-cite.h
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/main.c b/bin/table/main.c
index c1b741bb..314bfa87 100644
--- a/bin/table/main.c
+++ b/bin/table/main.c
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/main.h b/bin/table/main.h
index 15ed66ad..c0f812a6 100644
--- a/bin/table/main.h
+++ b/bin/table/main.h
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/table.c b/bin/table/table.c
index 0d49802a..f9a70a99 100644
--- a/bin/table/table.c
+++ b/bin/table/table.c
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/table.h b/bin/table/table.h
index 3442b8bd..c70c22fb 100644
--- a/bin/table/table.h
+++ b/bin/table/table.h
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/ui.c b/bin/table/ui.c
index c8b13f80..28b064b2 100644
--- a/bin/table/ui.c
+++ b/bin/table/ui.c
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/table/ui.h b/bin/table/ui.h
index 7bc0bbe7..b2cda224 100644
--- a/bin/table/ui.h
+++ b/bin/table/ui.h
@@ -5,7 +5,7 @@ Table is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/Makefile.am b/bin/warp/Makefile.am
index 55c4e8b5..b91ed7d6 100644
--- a/bin/warp/Makefile.am
+++ b/bin/warp/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/bin/warp/args.h b/bin/warp/args.h
index 1cbd9171..7d7e9c9b 100644
--- a/bin/warp/args.h
+++ b/bin/warp/args.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/astwarp.conf b/bin/warp/astwarp.conf
index dd681da9..9ba8b842 100644
--- a/bin/warp/astwarp.conf
+++ b/bin/warp/astwarp.conf
@@ -12,7 +12,7 @@
 #  $ info astwarp                        # All options and input/output.
 #  $ info gnuastro "Configuration files" # How to use configuration files.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/bin/warp/authors-cite.h b/bin/warp/authors-cite.h
index 8709da0e..2cff80b8 100644
--- a/bin/warp/authors-cite.h
+++ b/bin/warp/authors-cite.h
@@ -5,7 +5,7 @@ Warp is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/main.c b/bin/warp/main.c
index c63047fe..4b9c6472 100644
--- a/bin/warp/main.c
+++ b/bin/warp/main.c
@@ -5,7 +5,7 @@ Warp is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/main.h b/bin/warp/main.h
index e558ab64..0619e4bf 100644
--- a/bin/warp/main.h
+++ b/bin/warp/main.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/ui.c b/bin/warp/ui.c
index 73a0f4c0..21665a3b 100644
--- a/bin/warp/ui.c
+++ b/bin/warp/ui.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/ui.h b/bin/warp/ui.h
index c9080cde..9b218292 100644
--- a/bin/warp/ui.h
+++ b/bin/warp/ui.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/warp.c b/bin/warp/warp.c
index 2c2a317c..2f0d6688 100644
--- a/bin/warp/warp.c
+++ b/bin/warp/warp.c
@@ -6,7 +6,7 @@ Corresponding author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bin/warp/warp.h b/bin/warp/warp.h
index a2eb4204..a0bc2826 100644
--- a/bin/warp/warp.h
+++ b/bin/warp/warp.h
@@ -5,7 +5,7 @@ Warp is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/bootstrap b/bootstrap
index dc2238f4..c2a4cb0d 100755
--- a/bootstrap
+++ b/bootstrap
@@ -4,7 +4,7 @@ scriptversion=2022-01-26.05; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2023 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/bootstrap.conf b/bootstrap.conf
index 891f077b..8a040f58 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -10,7 +10,7 @@
 #     Mosè Giordano <mose@gnu.org>
 # Contributing author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/configure.ac b/configure.ac
index 36321114..400f9752 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@
 # Contributing author(s):
 #     Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 #     Jash Shah <jash28582@gmail.com>
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
diff --git a/developer-build b/developer-build
index 2373e79f..9a4929a2 100755
--- a/developer-build
+++ b/developer-build
@@ -11,7 +11,7 @@
 #   Mosè Giordano <mose@gnu.org>
 #   Raul Infante-Sainz <infantesainz@gmail.com>
 #   Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 9617f547..071223b0 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -6,7 +6,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## GNU Astronomy Utilities is free software: you can redistribute it
 ## and/or modify it under the terms of the GNU General Public License
diff --git a/doc/README b/doc/README
index fb31ce5b..292f53dc 100644
--- a/doc/README
+++ b/doc/README
@@ -1,7 +1,7 @@
 Documentation of GNU Astronomy Utilities
 ========================================
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 This directory contains the documentation (manual) of GNU Astronomy
@@ -57,7 +57,7 @@ Documentation License, Version 1.3 or later, just like this 
README
 
 Copyright
 ---------
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/doc/announce-acknowledge.txt b/doc/announce-acknowledge.txt
index 867d2eed..3bc50981 100644
--- a/doc/announce-acknowledge.txt
+++ b/doc/announce-acknowledge.txt
@@ -16,7 +16,7 @@ Michael Stein
 
 
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/doc/fonts.css b/doc/fonts.css
index 0860f892..a020fd7b 100644
--- a/doc/fonts.css
+++ b/doc/fonts.css
@@ -3,7 +3,7 @@
 Original author:
     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 This stylesheet is free software: you can redistribute it and/or
 modify it under the terms of the GNU General Public Licence as
diff --git a/doc/formath.texi b/doc/formath.texi
index e7876e3a..f6daa885 100644
--- a/doc/formath.texi
+++ b/doc/formath.texi
@@ -12,7 +12,7 @@ For the other formats, everything is normal, except the 
display math
 equations that don't have any proper solution, so I have just put a $$
 $$ around the math.
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
diff --git a/doc/forwebpage b/doc/forwebpage
index 33f4dd95..da533063 100755
--- a/doc/forwebpage
+++ b/doc/forwebpage
@@ -76,7 +76,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
diff --git a/doc/genauthors b/doc/genauthors
index e5d109e1..3ae26f34 100755
--- a/doc/genauthors
+++ b/doc/genauthors
@@ -13,7 +13,7 @@
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
 #     Mosè Giordano <mose@gnu.org>
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/doc/gnuastro-figures/README b/doc/gnuastro-figures/README
index 586601b4..5b04ad3a 100644
--- a/doc/gnuastro-figures/README
+++ b/doc/gnuastro-figures/README
@@ -21,7 +21,7 @@ epicycles.png: This is a combined image from two images on 
Wikipedia (links
 
 Copyright information
 ---------------------
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/doc/gnuastro-figures/gnuastro.svg 
b/doc/gnuastro-figures/gnuastro.svg
index d5a39600..03151dbb 100644
--- a/doc/gnuastro-figures/gnuastro.svg
+++ b/doc/gnuastro-figures/gnuastro.svg
@@ -3,7 +3,7 @@
 <!--
 Original author:
     Marjan Akbari <mrjakbari@gmail.com>
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by
diff --git a/doc/gnuastro.en.html b/doc/gnuastro.en.html
index 7dc62b8d..c510515b 100644
--- a/doc/gnuastro.en.html
+++ b/doc/gnuastro.en.html
@@ -492,7 +492,7 @@ of this article.</p>
      There is more detail about copyright years in the GNU Maintainers
      Information document, www.gnu.org/prep/maintain. -->
 
-<p>Copyright &copy; 2015-2016 Free Software Foundation, Inc.</p>
+<p>Copyright &copy; 2015-2023 Free Software Foundation, Inc.</p>
 
 <p>This page is licensed under a <a rel="license"
 href="http://creativecommons.org/licenses/by-nd/4.0/";>Creative
diff --git a/doc/gnuastro.fr.html b/doc/gnuastro.fr.html
index 64e6e74d..6d790eaa 100644
--- a/doc/gnuastro.fr.html
+++ b/doc/gnuastro.fr.html
@@ -466,7 +466,7 @@ traduction</a>.</p>
      There is more detail about copyright years in the GNU Maintainers
      Information document, www.gnu.org/prep/maintain. -->
 
-<p>Copyright &copy; 2015-2017 Free Software Foundation, Inc.</p>
+<p>Copyright &copy; 2015-2023 Free Software Foundation, Inc.</p>
 
 <p>Cette page peut être utilisée suivant les conditions de la
 licence <a rel="license"
diff --git a/doc/gnuastro.texi b/doc/gnuastro.texi
index fa7d64d6..e87d1824 100644
--- a/doc/gnuastro.texi
+++ b/doc/gnuastro.texi
@@ -39,7 +39,7 @@
 This book documents version @value{VERSION} of the GNU Astronomy Utilities 
(Gnuastro).
 Gnuastro provides various programs and libraries for astronomical data 
manipulation and analysis.
 
-Copyright @copyright{} 2015-2022 Free Software Foundation, Inc.
+Copyright @copyright{} 2015-2023 Free Software Foundation, Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document under 
the terms of the GNU Free Documentation License, Version 1.3 or any later 
version published by the Free Software Foundation; with no Invariant Sections, 
no Front-Cover Texts, and no Back-Cover Texts.
@@ -4876,8 +4876,8 @@ These are very important points that you will definitely 
encouter during your ow
 #!/bin/bash
 # Script to download and keep the deep region of the XDF survey.
 #
-# Copyright (C) 2022      Your Name <yourname@@email.company>
-# Copyright (C) 2021-2022 Initial Author <incase@@there-is.any>
+# Copyright (C) 2023      Your Name <yourname@@email.company>
+# Copyright (C) 2021-2023 Initial Author <incase@@there-is.any>
 #
 # This script is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -39149,8 +39149,8 @@ The existing name of the original author of this 
example program is only for cas
  * into memory  and use the 'void *array' pointer. This is just intended
  * to demonstrate how to use the array pointer of 'gal_data_t'.
  *
- * Copyright (C) 2022      Your Name <your@@email.address>
- * Copyright (C) 2020-2022 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
+ * Copyright (C) 2023      Your Name <your@@email.address>
+ * Copyright (C) 2020-2023 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39228,8 +39228,8 @@ The existing name of the original author of this 
example program is only for cas
  * The following simple program shows how you can inspect the neighbors
  * of a pixel using the GAL_DIMENSION_NEIGHBOR_OP function-like macro.
  *
- * Copyright (C) 2022      Your Name <your@@email.address>
- * Copyright (C) 2020-2022 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
+ * Copyright (C) 2023      Your Name <your@@email.address>
+ * Copyright (C) 2020-2023 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39321,8 +39321,8 @@ This program was also built and run when you ran 
@code{make check} during the bu
  * pixels between different threads and print the value of each pixel
  * and the thread it was assigned to.
  *
- * Copyright (C) 2022      Your Name <your@@email.address>
- * Copyright (C) 2020-2022 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
+ * Copyright (C) 2023      Your Name <your@@email.address>
+ * Copyright (C) 2020-2023 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39486,8 +39486,8 @@ The existing name of the original author of this 
example program is only for cas
  * columns in memory, it will print them out along with their sum. The
  * rest of the program is a demonstration of writing a table.
  *
- * Copyright (C) 2022      Your Name <your@@email.address>
- * Copyright (C) 2020-2022 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
+ * Copyright (C) 2023      Your Name <your@@email.address>
+ * Copyright (C) 2020-2023 Mohammad Akhlaghi <mohammad@@akhlaghi.org>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39635,8 +39635,8 @@ The existing name of the original author of this 
example program is only for cas
  * In the example below, we are warping the input.fits file to the same
  * pixel grid and WCS as reference.fits image.
  *
- * Copyright (C) 2022      Your Name <your@@email.address>
- * Copyright (C) 2022 Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
+ * Copyright (C) 2023      Your Name <your@@email.address>
+ * Copyright (C) 2022-2023 Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39762,8 +39762,8 @@ The existing name of the original author of this 
example program is only for cas
  * let the Warp library measure the proper output image size that will
  * contain the aligned image.
  *
- * Copyright (C) 2022 Your Name <your@@email.address>
- * Copyright (C) 2022 Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
+ * Copyright (C) 2023      Your Name <your@@email.address>
+ * Copyright (C) 2022-2023 Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/doc/gnuastro.translist b/doc/gnuastro.translist
index b4d6b2ba..be764eda 100644
--- a/doc/gnuastro.translist
+++ b/doc/gnuastro.translist
@@ -1,5 +1,5 @@
 <!-- begin translist file -->
-<!-- Copyright (C) 2015-2022 Free Software Foundation, Inc.
+<!-- Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
  This file is part of GNU Astronomy Utilities (Gnuastro) webpage.
 
diff --git a/doc/javascript.html b/doc/javascript.html
index 321c1486..338b87a6 100644
--- a/doc/javascript.html
+++ b/doc/javascript.html
@@ -4,7 +4,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/Makefile b/doc/plotsrc/Makefile
index 1e7b6d02..dc4e39dd 100644
--- a/doc/plotsrc/Makefile
+++ b/doc/plotsrc/Makefile
@@ -3,7 +3,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # GNU Astronomy Utilities is free software: you can redistribute it
 # and/or modify it under the terms of the GNU General Public License
diff --git a/doc/plotsrc/README b/doc/plotsrc/README
index 700bc6cf..660b6eb1 100644
--- a/doc/plotsrc/README
+++ b/doc/plotsrc/README
@@ -1,7 +1,7 @@
 Make the plots/figures of the book
 ----------------------------------
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 This directory has all the necessary information to make the plots
@@ -32,7 +32,7 @@ in Ghostscript that has been fixed since version 9.24
 
 Copyright
 ---------
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/doc/plotsrc/all.tex b/doc/plotsrc/all.tex
index 9c771805..f61020a2 100644
--- a/doc/plotsrc/all.tex
+++ b/doc/plotsrc/all.tex
@@ -5,7 +5,7 @@
 % Original author:
 %     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 % Contributing author(s):
-% Copyright (C) 2015-2022 Free Software Foundation, Inc.
+% Copyright (C) 2015-2023 Free Software Foundation, Inc.
 %
 % Gnuastro is free software: you can redistribute it and/or modify it
 % under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/conversions.sh b/doc/plotsrc/conversions.sh
index 3bc662a4..e71c18bd 100755
--- a/doc/plotsrc/conversions.sh
+++ b/doc/plotsrc/conversions.sh
@@ -13,7 +13,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/tex/color-names.tex b/doc/plotsrc/tex/color-names.tex
index fecf82d3..1729f7e6 100644
--- a/doc/plotsrc/tex/color-names.tex
+++ b/doc/plotsrc/tex/color-names.tex
@@ -5,7 +5,7 @@
 % Original author:
 %     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 % Contributing author(s):
-% Copyright (C) 2022 Free Software Foundation, Inc.
+% Copyright (C) 2022-2023 Free Software Foundation, Inc.
 %
 % Gnuastro is free software: you can redistribute it and/or modify it
 % under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/tex/flatplane.tex b/doc/plotsrc/tex/flatplane.tex
index 2277d5e3..de180f1a 100644
--- a/doc/plotsrc/tex/flatplane.tex
+++ b/doc/plotsrc/tex/flatplane.tex
@@ -5,7 +5,7 @@
 % Original author:
 %     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 % Contributing author(s):
-% Copyright (C) 2016-2022 Free Software Foundation, Inc.
+% Copyright (C) 2016-2023 Free Software Foundation, Inc.
 %
 % Gnuastro is free software: you can redistribute it and/or modify it
 % under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/tex/iandtime.tex b/doc/plotsrc/tex/iandtime.tex
index c693df29..0cd7b678 100644
--- a/doc/plotsrc/tex/iandtime.tex
+++ b/doc/plotsrc/tex/iandtime.tex
@@ -5,7 +5,7 @@
 % Original author:
 %     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 % Contributing author(s):
-% Copyright (C) 2015-2022 Free Software Foundation, Inc.
+% Copyright (C) 2015-2023 Free Software Foundation, Inc.
 %
 % Gnuastro is free software: you can redistribute it and/or modify it
 % under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/tex/samplingfreq.tex b/doc/plotsrc/tex/samplingfreq.tex
index fca3548f..6ef184df 100644
--- a/doc/plotsrc/tex/samplingfreq.tex
+++ b/doc/plotsrc/tex/samplingfreq.tex
@@ -5,7 +5,7 @@
 % Original author:
 %     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 % Contributing author(s):
-% Copyright (C) 2015-2022 Free Software Foundation, Inc.
+% Copyright (C) 2015-2023 Free Software Foundation, Inc.
 %
 % Gnuastro is free software: you can redistribute it and/or modify it
 % under the terms of the GNU General Public License as published by
diff --git a/doc/plotsrc/tex/sphereandplane.tex 
b/doc/plotsrc/tex/sphereandplane.tex
index 17d50ef0..7fc249ad 100644
--- a/doc/plotsrc/tex/sphereandplane.tex
+++ b/doc/plotsrc/tex/sphereandplane.tex
@@ -5,7 +5,7 @@
 % Original author:
 %     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 % Contributing author(s):
-% Copyright (C) 2016-2022 Free Software Foundation, Inc.
+% Copyright (C) 2016-2023 Free Software Foundation, Inc.
 %
 % Gnuastro is free software: you can redistribute it and/or modify it
 % under the terms of the GNU General Public License as published by
diff --git a/doc/release-checklist.txt b/doc/release-checklist.txt
index 70f7bca2..82578c0c 100644
--- a/doc/release-checklist.txt
+++ b/doc/release-checklist.txt
@@ -1,7 +1,7 @@
 Gnuastro release checklist
 ==========================
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 
@@ -517,7 +517,7 @@ features in a recorded terminal.
 
 Copyright
 =========
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/doc/style.css b/doc/style.css
index ff30a17b..9fc80304 100644
--- a/doc/style.css
+++ b/doc/style.css
@@ -3,7 +3,7 @@
 Original author:
     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 This stylesheet is free software: you can redistribute it and/or
 modify it under the terms of the GNU General Public Licence as
diff --git a/genauthors b/genauthors
index a8327b3e..75d45b23 100755
--- a/genauthors
+++ b/genauthors
@@ -16,7 +16,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 168771a5..5e1828c8 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/lib/arithmetic-and.c b/lib/arithmetic-and.c
index 4bc9a409..f6038f5a 100644
--- a/lib/arithmetic-and.c
+++ b/lib/arithmetic-and.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-bitand.c b/lib/arithmetic-bitand.c
index a4e53dc2..729de373 100644
--- a/lib/arithmetic-bitand.c
+++ b/lib/arithmetic-bitand.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-bitlsh.c b/lib/arithmetic-bitlsh.c
index aa9a6828..ac8dec32 100644
--- a/lib/arithmetic-bitlsh.c
+++ b/lib/arithmetic-bitlsh.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-bitor.c b/lib/arithmetic-bitor.c
index 0d3bbc86..1aa71e5e 100644
--- a/lib/arithmetic-bitor.c
+++ b/lib/arithmetic-bitor.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-bitrsh.c b/lib/arithmetic-bitrsh.c
index 0fec1b43..7831cc30 100644
--- a/lib/arithmetic-bitrsh.c
+++ b/lib/arithmetic-bitrsh.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-bitxor.c b/lib/arithmetic-bitxor.c
index f9201dd9..2a2bfb7a 100644
--- a/lib/arithmetic-bitxor.c
+++ b/lib/arithmetic-bitxor.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-divide.c b/lib/arithmetic-divide.c
index 04b4470f..82b7a75c 100644
--- a/lib/arithmetic-divide.c
+++ b/lib/arithmetic-divide.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-eq.c b/lib/arithmetic-eq.c
index fd093f81..b433945c 100644
--- a/lib/arithmetic-eq.c
+++ b/lib/arithmetic-eq.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-ge.c b/lib/arithmetic-ge.c
index 8f892492..ed779c12 100644
--- a/lib/arithmetic-ge.c
+++ b/lib/arithmetic-ge.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-gt.c b/lib/arithmetic-gt.c
index e8f2b4af..f39ef9d3 100644
--- a/lib/arithmetic-gt.c
+++ b/lib/arithmetic-gt.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-le.c b/lib/arithmetic-le.c
index 0ce61254..76329cd1 100644
--- a/lib/arithmetic-le.c
+++ b/lib/arithmetic-le.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-lt.c b/lib/arithmetic-lt.c
index d6224ed0..0b949547 100644
--- a/lib/arithmetic-lt.c
+++ b/lib/arithmetic-lt.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-minus.c b/lib/arithmetic-minus.c
index 092883fd..3732cf30 100644
--- a/lib/arithmetic-minus.c
+++ b/lib/arithmetic-minus.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-modulo.c b/lib/arithmetic-modulo.c
index 7ccd7b58..fc5b3995 100644
--- a/lib/arithmetic-modulo.c
+++ b/lib/arithmetic-modulo.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-multiply.c b/lib/arithmetic-multiply.c
index b99719c3..ed54ca9b 100644
--- a/lib/arithmetic-multiply.c
+++ b/lib/arithmetic-multiply.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-ne.c b/lib/arithmetic-ne.c
index 4c6ee8cd..a1338b31 100644
--- a/lib/arithmetic-ne.c
+++ b/lib/arithmetic-ne.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-or.c b/lib/arithmetic-or.c
index dbd13fc3..26a1a9ed 100644
--- a/lib/arithmetic-or.c
+++ b/lib/arithmetic-or.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-plus.c b/lib/arithmetic-plus.c
index f56f420c..8a445b3a 100644
--- a/lib/arithmetic-plus.c
+++ b/lib/arithmetic-plus.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic-set.c b/lib/arithmetic-set.c
index 4f9cddbf..937e58b7 100644
--- a/lib/arithmetic-set.c
+++ b/lib/arithmetic-set.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/arithmetic.c b/lib/arithmetic.c
index 4a9ee667..e2bfb096 100644
--- a/lib/arithmetic.c
+++ b/lib/arithmetic.c
@@ -6,7 +6,7 @@ Corresponding author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/array.c b/lib/array.c
index 8f2f6965..9819497d 100644
--- a/lib/array.c
+++ b/lib/array.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/binary.c b/lib/binary.c
index 2b336d8f..292b0438 100644
--- a/lib/binary.c
+++ b/lib/binary.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/blank.c b/lib/blank.c
index e4aeca4a..ee13507d 100644
--- a/lib/blank.c
+++ b/lib/blank.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/box.c b/lib/box.c
index 2ce5cccb..3de7c6cf 100644
--- a/lib/box.c
+++ b/lib/box.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/checkset.c b/lib/checkset.c
index 27024598..463fbba0 100644
--- a/lib/checkset.c
+++ b/lib/checkset.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/color.c b/lib/color.c
index 6a27e102..8e3533b0 100644
--- a/lib/color.c
+++ b/lib/color.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/convolve.c b/lib/convolve.c
index bc85fdd5..4c4422b6 100644
--- a/lib/convolve.c
+++ b/lib/convolve.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/cosmology.c b/lib/cosmology.c
index ad42b794..dc1aed0e 100644
--- a/lib/cosmology.c
+++ b/lib/cosmology.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/data.c b/lib/data.c
index 267a51bb..ee779f55 100644
--- a/lib/data.c
+++ b/lib/data.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/dimension.c b/lib/dimension.c
index ad7d8a40..035aa7a7 100644
--- a/lib/dimension.c
+++ b/lib/dimension.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/ds9.c b/lib/ds9.c
index 64303416..c4558cb1 100644
--- a/lib/ds9.c
+++ b/lib/ds9.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/eps.c b/lib/eps.c
index fb562c38..5e5619cd 100644
--- a/lib/eps.c
+++ b/lib/eps.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/fit.c b/lib/fit.c
index af889b6a..6bc18025 100644
--- a/lib/fit.c
+++ b/lib/fit.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/fits.c b/lib/fits.c
index 190fb324..a84ef921 100644
--- a/lib/fits.c
+++ b/lib/fits.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/git.c b/lib/git.c
index 200e1d8d..baf0add6 100644
--- a/lib/git.c
+++ b/lib/git.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/README b/lib/gnuastro-internal/README
index 3442c1c8..21591a25 100644
--- a/lib/gnuastro-internal/README
+++ b/lib/gnuastro-internal/README
@@ -1,7 +1,7 @@
 GNU Astronomy Utilities internal header files
 ---------------------------------------------
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 The '.h' files in this directory are headers to Gnuastro's internal
diff --git a/lib/gnuastro-internal/arithmetic-and.h 
b/lib/gnuastro-internal/arithmetic-and.h
index 56467374..4b8bdd3a 100644
--- a/lib/gnuastro-internal/arithmetic-and.h
+++ b/lib/gnuastro-internal/arithmetic-and.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-binary.h 
b/lib/gnuastro-internal/arithmetic-binary.h
index 5647d6ba..53c5de8e 100644
--- a/lib/gnuastro-internal/arithmetic-binary.h
+++ b/lib/gnuastro-internal/arithmetic-binary.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-bitand.h 
b/lib/gnuastro-internal/arithmetic-bitand.h
index 9bd61687..d629430c 100644
--- a/lib/gnuastro-internal/arithmetic-bitand.h
+++ b/lib/gnuastro-internal/arithmetic-bitand.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-bitlsh.h 
b/lib/gnuastro-internal/arithmetic-bitlsh.h
index 6d4d1cee..0f0a8a40 100644
--- a/lib/gnuastro-internal/arithmetic-bitlsh.h
+++ b/lib/gnuastro-internal/arithmetic-bitlsh.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-bitor.h 
b/lib/gnuastro-internal/arithmetic-bitor.h
index fbda2f78..c290cf28 100644
--- a/lib/gnuastro-internal/arithmetic-bitor.h
+++ b/lib/gnuastro-internal/arithmetic-bitor.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-bitrsh.h 
b/lib/gnuastro-internal/arithmetic-bitrsh.h
index 60dec7c2..1ace8644 100644
--- a/lib/gnuastro-internal/arithmetic-bitrsh.h
+++ b/lib/gnuastro-internal/arithmetic-bitrsh.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-bitxor.h 
b/lib/gnuastro-internal/arithmetic-bitxor.h
index 73ad5fb1..789f53f7 100644
--- a/lib/gnuastro-internal/arithmetic-bitxor.h
+++ b/lib/gnuastro-internal/arithmetic-bitxor.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-divide.h 
b/lib/gnuastro-internal/arithmetic-divide.h
index 744abcc6..9b583dd9 100644
--- a/lib/gnuastro-internal/arithmetic-divide.h
+++ b/lib/gnuastro-internal/arithmetic-divide.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-eq.h 
b/lib/gnuastro-internal/arithmetic-eq.h
index 346a9778..7680b6d2 100644
--- a/lib/gnuastro-internal/arithmetic-eq.h
+++ b/lib/gnuastro-internal/arithmetic-eq.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-ge.h 
b/lib/gnuastro-internal/arithmetic-ge.h
index 1c0f64c5..44c774ac 100644
--- a/lib/gnuastro-internal/arithmetic-ge.h
+++ b/lib/gnuastro-internal/arithmetic-ge.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-gt.h 
b/lib/gnuastro-internal/arithmetic-gt.h
index d3d87792..801add9e 100644
--- a/lib/gnuastro-internal/arithmetic-gt.h
+++ b/lib/gnuastro-internal/arithmetic-gt.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-internal.h 
b/lib/gnuastro-internal/arithmetic-internal.h
index 5e849b26..9d95d475 100644
--- a/lib/gnuastro-internal/arithmetic-internal.h
+++ b/lib/gnuastro-internal/arithmetic-internal.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-le.h 
b/lib/gnuastro-internal/arithmetic-le.h
index f9ffe2dc..18f7dc81 100644
--- a/lib/gnuastro-internal/arithmetic-le.h
+++ b/lib/gnuastro-internal/arithmetic-le.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-lt.h 
b/lib/gnuastro-internal/arithmetic-lt.h
index 9d151ea3..5c9f50eb 100644
--- a/lib/gnuastro-internal/arithmetic-lt.h
+++ b/lib/gnuastro-internal/arithmetic-lt.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-minus.h 
b/lib/gnuastro-internal/arithmetic-minus.h
index aa655ba8..7122317d 100644
--- a/lib/gnuastro-internal/arithmetic-minus.h
+++ b/lib/gnuastro-internal/arithmetic-minus.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-modulo.h 
b/lib/gnuastro-internal/arithmetic-modulo.h
index 2ccb6e56..69f15bf0 100644
--- a/lib/gnuastro-internal/arithmetic-modulo.h
+++ b/lib/gnuastro-internal/arithmetic-modulo.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-multiply.h 
b/lib/gnuastro-internal/arithmetic-multiply.h
index b2e011a5..01c42d40 100644
--- a/lib/gnuastro-internal/arithmetic-multiply.h
+++ b/lib/gnuastro-internal/arithmetic-multiply.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-ne.h 
b/lib/gnuastro-internal/arithmetic-ne.h
index efb8eeaa..c85cd586 100644
--- a/lib/gnuastro-internal/arithmetic-ne.h
+++ b/lib/gnuastro-internal/arithmetic-ne.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-or.h 
b/lib/gnuastro-internal/arithmetic-or.h
index acb5c054..6cc6b6c5 100644
--- a/lib/gnuastro-internal/arithmetic-or.h
+++ b/lib/gnuastro-internal/arithmetic-or.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-plus.h 
b/lib/gnuastro-internal/arithmetic-plus.h
index e2cb19cd..1a9390f0 100644
--- a/lib/gnuastro-internal/arithmetic-plus.h
+++ b/lib/gnuastro-internal/arithmetic-plus.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/arithmetic-set.h 
b/lib/gnuastro-internal/arithmetic-set.h
index 153013fe..8ed1a985 100644
--- a/lib/gnuastro-internal/arithmetic-set.h
+++ b/lib/gnuastro-internal/arithmetic-set.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2021-2022 Free Software Foundation, Inc.
+Copyright (C) 2021-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/checkset.h b/lib/gnuastro-internal/checkset.h
index 6b5f0102..88b4c81a 100644
--- a/lib/gnuastro-internal/checkset.h
+++ b/lib/gnuastro-internal/checkset.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/commonopts.h 
b/lib/gnuastro-internal/commonopts.h
index a3fc3c0f..6bbf7aec 100644
--- a/lib/gnuastro-internal/commonopts.h
+++ b/lib/gnuastro-internal/commonopts.h
@@ -6,7 +6,7 @@ IMPORTANT: This header must only be included the programs, not 
libraries.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/config.h.in 
b/lib/gnuastro-internal/config.h.in
index ac0d97e1..c60f0802 100644
--- a/lib/gnuastro-internal/config.h.in
+++ b/lib/gnuastro-internal/config.h.in
@@ -5,7 +5,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/fixedstringmacros.h 
b/lib/gnuastro-internal/fixedstringmacros.h
index 2f581212..53153986 100644
--- a/lib/gnuastro-internal/fixedstringmacros.h
+++ b/lib/gnuastro-internal/fixedstringmacros.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
@@ -26,7 +26,7 @@ along with Gnuastro. If not, see 
<http://www.gnu.org/licenses/>.
 
 
 #define GAL_STRINGS_SHORT_COPYRIGHT                                     \
-  "Copyright (C) 2015-2022 Free Software Foundation, Inc."
+  "Copyright (C) 2015-2023 Free Software Foundation, Inc."
 
 
 #define GAL_STRINGS_SHORT_LICENSE                                       \
diff --git a/lib/gnuastro-internal/options.h b/lib/gnuastro-internal/options.h
index b59e4e20..0ccea4bb 100644
--- a/lib/gnuastro-internal/options.h
+++ b/lib/gnuastro-internal/options.h
@@ -4,7 +4,7 @@ Function to parse options and configuration file values.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/tableintern.h 
b/lib/gnuastro-internal/tableintern.h
index 2c888d10..a98ec4f2 100644
--- a/lib/gnuastro-internal/tableintern.h
+++ b/lib/gnuastro-internal/tableintern.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/tile-internal.h 
b/lib/gnuastro-internal/tile-internal.h
index b31c33f1..d7a130a3 100644
--- a/lib/gnuastro-internal/tile-internal.h
+++ b/lib/gnuastro-internal/tile-internal.h
@@ -6,7 +6,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/timing.h b/lib/gnuastro-internal/timing.h
index 6d210e45..88bbcc38 100644
--- a/lib/gnuastro-internal/timing.h
+++ b/lib/gnuastro-internal/timing.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro-internal/wcsdistortion.h 
b/lib/gnuastro-internal/wcsdistortion.h
index 76fb540e..e94b4a38 100644
--- a/lib/gnuastro-internal/wcsdistortion.h
+++ b/lib/gnuastro-internal/wcsdistortion.h
@@ -6,7 +6,7 @@ Original author:
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro.pc.in b/lib/gnuastro.pc.in
index fe849b49..d5fa9920 100644
--- a/lib/gnuastro.pc.in
+++ b/lib/gnuastro.pc.in
@@ -3,7 +3,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
diff --git a/lib/gnuastro/README b/lib/gnuastro/README
index 2ac14df1..c233c510 100644
--- a/lib/gnuastro/README
+++ b/lib/gnuastro/README
@@ -1,7 +1,7 @@
 GNU Astronomy Utilities library header files
 ============================================
 
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 This directory contins Gnuastro's installed library header files. Once
@@ -22,7 +22,7 @@ in the parent directory of this directory mixed with the 
actual library
 
 Copyright
 ---------
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document under
 the terms of the GNU Free Documentation License, Version 1.3 or any later
diff --git a/lib/gnuastro/arithmetic.h b/lib/gnuastro/arithmetic.h
index 7c2b5b7b..c0122e67 100644
--- a/lib/gnuastro/arithmetic.h
+++ b/lib/gnuastro/arithmetic.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/array.h b/lib/gnuastro/array.h
index a976683f..3c833f14 100644
--- a/lib/gnuastro/array.h
+++ b/lib/gnuastro/array.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/binary.h b/lib/gnuastro/binary.h
index 205df383..39e7b0c2 100644
--- a/lib/gnuastro/binary.h
+++ b/lib/gnuastro/binary.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/blank.h b/lib/gnuastro/blank.h
index 5e851078..90299c6c 100644
--- a/lib/gnuastro/blank.h
+++ b/lib/gnuastro/blank.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/box.h b/lib/gnuastro/box.h
index 6cf1350a..60ca8de1 100644
--- a/lib/gnuastro/box.h
+++ b/lib/gnuastro/box.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/color.h b/lib/gnuastro/color.h
index a4a473bc..3e893e7d 100644
--- a/lib/gnuastro/color.h
+++ b/lib/gnuastro/color.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/convolve.h b/lib/gnuastro/convolve.h
index bb0695c4..9d298670 100644
--- a/lib/gnuastro/convolve.h
+++ b/lib/gnuastro/convolve.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/cosmology.h b/lib/gnuastro/cosmology.h
index 46f7e3d2..6f5063ea 100644
--- a/lib/gnuastro/cosmology.h
+++ b/lib/gnuastro/cosmology.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/data.h b/lib/gnuastro/data.h
index 9dd8a00a..e1333d3e 100644
--- a/lib/gnuastro/data.h
+++ b/lib/gnuastro/data.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/dimension.h b/lib/gnuastro/dimension.h
index 275b7b27..6e8426a2 100644
--- a/lib/gnuastro/dimension.h
+++ b/lib/gnuastro/dimension.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/ds9.h b/lib/gnuastro/ds9.h
index 5061fee9..bf29afdf 100644
--- a/lib/gnuastro/ds9.h
+++ b/lib/gnuastro/ds9.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/eps.h b/lib/gnuastro/eps.h
index bcb875a5..6d7eb08b 100644
--- a/lib/gnuastro/eps.h
+++ b/lib/gnuastro/eps.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/fit.h b/lib/gnuastro/fit.h
index eea4fa96..b72fbce1 100644
--- a/lib/gnuastro/fit.h
+++ b/lib/gnuastro/fit.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/fits.h b/lib/gnuastro/fits.h
index 56e5340a..55ca2908 100644
--- a/lib/gnuastro/fits.h
+++ b/lib/gnuastro/fits.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/git.h b/lib/gnuastro/git.h
index 1573dbcd..e6bf8c4b 100644
--- a/lib/gnuastro/git.h
+++ b/lib/gnuastro/git.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/interpolate.h b/lib/gnuastro/interpolate.h
index de72c71b..fcd26175 100644
--- a/lib/gnuastro/interpolate.h
+++ b/lib/gnuastro/interpolate.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/jpeg.h b/lib/gnuastro/jpeg.h
index 3bbe02f4..ee13af19 100644
--- a/lib/gnuastro/jpeg.h
+++ b/lib/gnuastro/jpeg.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/kdtree.h b/lib/gnuastro/kdtree.h
index f85b04a5..27ebc2e2 100644
--- a/lib/gnuastro/kdtree.h
+++ b/lib/gnuastro/kdtree.h
@@ -6,7 +6,7 @@ Original author:
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/label.h b/lib/gnuastro/label.h
index 6c43f593..0f665c43 100644
--- a/lib/gnuastro/label.h
+++ b/lib/gnuastro/label.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/list.h b/lib/gnuastro/list.h
index cfa2d55c..441ed419 100644
--- a/lib/gnuastro/list.h
+++ b/lib/gnuastro/list.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/match.h b/lib/gnuastro/match.h
index 0037d87e..c40d2110 100644
--- a/lib/gnuastro/match.h
+++ b/lib/gnuastro/match.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/pdf.h b/lib/gnuastro/pdf.h
index 3b736434..e631eef9 100644
--- a/lib/gnuastro/pdf.h
+++ b/lib/gnuastro/pdf.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/permutation.h b/lib/gnuastro/permutation.h
index 58bad780..f0555b9a 100644
--- a/lib/gnuastro/permutation.h
+++ b/lib/gnuastro/permutation.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/pointer.h b/lib/gnuastro/pointer.h
index d95c4966..21987617 100644
--- a/lib/gnuastro/pointer.h
+++ b/lib/gnuastro/pointer.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/polygon.h b/lib/gnuastro/polygon.h
index 13c042bd..2dfef7d9 100644
--- a/lib/gnuastro/polygon.h
+++ b/lib/gnuastro/polygon.h
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/python.h b/lib/gnuastro/python.h
index 16338a97..01191284 100644
--- a/lib/gnuastro/python.h
+++ b/lib/gnuastro/python.h
@@ -6,7 +6,7 @@ Original author:
      Jash Shah <jash28582@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/qsort.h b/lib/gnuastro/qsort.h
index 467f0830..323eb06d 100644
--- a/lib/gnuastro/qsort.h
+++ b/lib/gnuastro/qsort.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/speclines.h b/lib/gnuastro/speclines.h
index 6c62f2a7..f09bc4b6 100644
--- a/lib/gnuastro/speclines.h
+++ b/lib/gnuastro/speclines.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/statistics.h b/lib/gnuastro/statistics.h
index 2293d873..6fafd836 100644
--- a/lib/gnuastro/statistics.h
+++ b/lib/gnuastro/statistics.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/table.h b/lib/gnuastro/table.h
index afb77772..7609a675 100644
--- a/lib/gnuastro/table.h
+++ b/lib/gnuastro/table.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/threads.h b/lib/gnuastro/threads.h
index 54a013a4..904079ce 100644
--- a/lib/gnuastro/threads.h
+++ b/lib/gnuastro/threads.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/tiff.h b/lib/gnuastro/tiff.h
index c8c4bf9d..ae3b502f 100644
--- a/lib/gnuastro/tiff.h
+++ b/lib/gnuastro/tiff.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/tile.h b/lib/gnuastro/tile.h
index ae480ed8..ee0f7e29 100644
--- a/lib/gnuastro/tile.h
+++ b/lib/gnuastro/tile.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/txt.h b/lib/gnuastro/txt.h
index 2794648b..9ca95687 100644
--- a/lib/gnuastro/txt.h
+++ b/lib/gnuastro/txt.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/type.h b/lib/gnuastro/type.h
index 506da073..3bd63e93 100644
--- a/lib/gnuastro/type.h
+++ b/lib/gnuastro/type.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/units.h b/lib/gnuastro/units.h
index 31a5f994..c6be3eda 100644
--- a/lib/gnuastro/units.h
+++ b/lib/gnuastro/units.h
@@ -6,7 +6,7 @@ Original author:
      Kartik Ohri <kartikohri13@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/warp.h b/lib/gnuastro/warp.h
index 190ed3ee..3ec908ab 100644
--- a/lib/gnuastro/warp.h
+++ b/lib/gnuastro/warp.h
@@ -6,7 +6,7 @@ Corresponding author:
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/gnuastro/wcs.h b/lib/gnuastro/wcs.h
index 6c0f2a75..b407f7b0 100644
--- a/lib/gnuastro/wcs.h
+++ b/lib/gnuastro/wcs.h
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/interpolate.c b/lib/interpolate.c
index d257c168..6223e60c 100644
--- a/lib/interpolate.c
+++ b/lib/interpolate.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/jpeg.c b/lib/jpeg.c
index 4d7d91f3..72156544 100644
--- a/lib/jpeg.c
+++ b/lib/jpeg.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/kdtree.c b/lib/kdtree.c
index a84054a7..364c137a 100644
--- a/lib/kdtree.c
+++ b/lib/kdtree.c
@@ -6,7 +6,7 @@ Original author:
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/label.c b/lib/label.c
index dce5616c..68761095 100644
--- a/lib/label.c
+++ b/lib/label.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/list.c b/lib/list.c
index 39459d3e..50b38061 100644
--- a/lib/list.c
+++ b/lib/list.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/makeplugin.c b/lib/makeplugin.c
index 6d90f9a9..c2ae1754 100644
--- a/lib/makeplugin.c
+++ b/lib/makeplugin.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/match.c b/lib/match.c
index d232841b..42590e86 100644
--- a/lib/match.c
+++ b/lib/match.c
@@ -6,7 +6,7 @@ Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/options.c b/lib/options.c
index 5ca449e6..ad361c63 100644
--- a/lib/options.c
+++ b/lib/options.c
@@ -4,7 +4,7 @@ Function to parse options and configuration file values.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/pdf.c b/lib/pdf.c
index ffa11e8d..3ed870e3 100644
--- a/lib/pdf.c
+++ b/lib/pdf.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/permutation.c b/lib/permutation.c
index ed74c077..a9bc1b65 100644
--- a/lib/permutation.c
+++ b/lib/permutation.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/pointer.c b/lib/pointer.c
index 8e7a1003..c2b307e2 100644
--- a/lib/pointer.c
+++ b/lib/pointer.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/polygon.c b/lib/polygon.c
index bf646ed2..91540cb1 100644
--- a/lib/polygon.c
+++ b/lib/polygon.c
@@ -7,7 +7,7 @@ Original author:
 Contributing author(s):
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/python.c b/lib/python.c
index d8fdfd1e..42a64e70 100644
--- a/lib/python.c
+++ b/lib/python.c
@@ -6,7 +6,7 @@ Original author:
      Jash Shah <jash28582@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/qsort.c b/lib/qsort.c
index 95367430..e8f94d62 100644
--- a/lib/qsort.c
+++ b/lib/qsort.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/speclines.c b/lib/speclines.c
index 75cbe5f5..6fca0955 100644
--- a/lib/speclines.c
+++ b/lib/speclines.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/statistics.c b/lib/statistics.c
index db4372f8..bd7da5b3 100644
--- a/lib/statistics.c
+++ b/lib/statistics.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/table.c b/lib/table.c
index ba5c00e0..0093ecde 100644
--- a/lib/table.c
+++ b/lib/table.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/tableintern.c b/lib/tableintern.c
index c5d67383..1abde72a 100644
--- a/lib/tableintern.c
+++ b/lib/tableintern.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/threads.c b/lib/threads.c
index 996c7892..68deb2f7 100644
--- a/lib/threads.c
+++ b/lib/threads.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/tiff.c b/lib/tiff.c
index 44f4d3a9..88db94e5 100644
--- a/lib/tiff.c
+++ b/lib/tiff.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/tile-internal.c b/lib/tile-internal.c
index 374cd614..b39f2343 100644
--- a/lib/tile-internal.c
+++ b/lib/tile-internal.c
@@ -6,7 +6,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/tile.c b/lib/tile.c
index fa5941b0..7dc67b48 100644
--- a/lib/tile.c
+++ b/lib/tile.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/timing.c b/lib/timing.c
index 79f18644..0a2cf91d 100644
--- a/lib/timing.c
+++ b/lib/timing.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/txt.c b/lib/txt.c
index a1bf2c6e..c06aa919 100644
--- a/lib/txt.c
+++ b/lib/txt.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/type.c b/lib/type.c
index 21ac211a..66bf632a 100644
--- a/lib/type.c
+++ b/lib/type.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2016-2022 Free Software Foundation, Inc.
+Copyright (C) 2016-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/units.c b/lib/units.c
index abb7a413..a79129c9 100644
--- a/lib/units.c
+++ b/lib/units.c
@@ -7,7 +7,7 @@ Original author:
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/warp.c b/lib/warp.c
index ff53f382..55e8e2b7 100644
--- a/lib/warp.c
+++ b/lib/warp.c
@@ -6,7 +6,7 @@ Corresponding author:
      Pedram Ashofteh-Ardakani <pedramardakani@pm.me>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2022 Free Software Foundation, Inc.
+Copyright (C) 2022-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/wcs.c b/lib/wcs.c
index 60659b9d..2836ee32 100644
--- a/lib/wcs.c
+++ b/lib/wcs.c
@@ -5,7 +5,7 @@ This is part of GNU Astronomy Utilities (Gnuastro) package.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/lib/wcsdistortion.c b/lib/wcsdistortion.c
index 5e6fe287..0fe4c155 100644
--- a/lib/wcsdistortion.c
+++ b/lib/wcsdistortion.c
@@ -6,7 +6,7 @@ Original author:
      Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
 Contributing author(s):
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/tests/Makefile.am b/tests/Makefile.am
index c0f2a61d..5a06bb45 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -3,7 +3,7 @@
 ## Original author:
 ##     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 ## Contributing author(s):
-## Copyright (C) 2015-2022 Free Software Foundation, Inc.
+## Copyright (C) 2015-2023 Free Software Foundation, Inc.
 ##
 ## Gnuastro is free software: you can redistribute it and/or modify it
 ## under the terms of the GNU General Public License as published by
diff --git a/tests/arithmetic/connected-components.sh 
b/tests/arithmetic/connected-components.sh
index ecb5088e..b1b9eaef 100755
--- a/tests/arithmetic/connected-components.sh
+++ b/tests/arithmetic/connected-components.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/arithmetic/onlynumbers.sh b/tests/arithmetic/onlynumbers.sh
index 0943818f..f0fd334d 100755
--- a/tests/arithmetic/onlynumbers.sh
+++ b/tests/arithmetic/onlynumbers.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/arithmetic/or.sh b/tests/arithmetic/or.sh
index f8ce22ea..1c78f39d 100755
--- a/tests/arithmetic/or.sh
+++ b/tests/arithmetic/or.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/arithmetic/snimage.sh b/tests/arithmetic/snimage.sh
index cfb6f24a..baa4f6d3 100755
--- a/tests/arithmetic/snimage.sh
+++ b/tests/arithmetic/snimage.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/arithmetic/where.sh b/tests/arithmetic/where.sh
index 9b888249..934ca326 100755
--- a/tests/arithmetic/where.sh
+++ b/tests/arithmetic/where.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/buildprog/simpleio.c b/tests/buildprog/simpleio.c
index 20e8c41e..bdb07c0b 100644
--- a/tests/buildprog/simpleio.c
+++ b/tests/buildprog/simpleio.c
@@ -4,7 +4,7 @@ A test program to multithreaded building using Gnuastro's 
helpers.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/tests/buildprog/simpleio.sh b/tests/buildprog/simpleio.sh
index 2dde86d8..d15a6e3b 100755
--- a/tests/buildprog/simpleio.sh
+++ b/tests/buildprog/simpleio.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/blankch.sh b/tests/convertt/blankch.sh
index dfc58a32..b33ff8c4 100755
--- a/tests/convertt/blankch.sh
+++ b/tests/convertt/blankch.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/fitstojpeg.sh b/tests/convertt/fitstojpeg.sh
index 95c52386..734193a5 100755
--- a/tests/convertt/fitstojpeg.sh
+++ b/tests/convertt/fitstojpeg.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/fitstojpegcmyk.sh b/tests/convertt/fitstojpegcmyk.sh
index 1123f47d..9862fce5 100755
--- a/tests/convertt/fitstojpegcmyk.sh
+++ b/tests/convertt/fitstojpegcmyk.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/fitstopdf.sh b/tests/convertt/fitstopdf.sh
index 143527f2..09b762bd 100755
--- a/tests/convertt/fitstopdf.sh
+++ b/tests/convertt/fitstopdf.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/fitstotxt.sh b/tests/convertt/fitstotxt.sh
index 54dea33a..1d31025d 100755
--- a/tests/convertt/fitstotxt.sh
+++ b/tests/convertt/fitstotxt.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/jpegtofits.sh b/tests/convertt/jpegtofits.sh
index 246c80b6..fb8b416c 100755
--- a/tests/convertt/jpegtofits.sh
+++ b/tests/convertt/jpegtofits.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convertt/jpegtotxt.sh b/tests/convertt/jpegtotxt.sh
index 14fe81a2..21bbf033 100755
--- a/tests/convertt/jpegtotxt.sh
+++ b/tests/convertt/jpegtotxt.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convolve/frequency.sh b/tests/convolve/frequency.sh
index 6b419317..747d7b3c 100755
--- a/tests/convolve/frequency.sh
+++ b/tests/convolve/frequency.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convolve/psf-match.sh b/tests/convolve/psf-match.sh
index d3cf3948..8cbddece 100755
--- a/tests/convolve/psf-match.sh
+++ b/tests/convolve/psf-match.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convolve/spatial.sh b/tests/convolve/spatial.sh
index 754122a7..e5766ed4 100755
--- a/tests/convolve/spatial.sh
+++ b/tests/convolve/spatial.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/convolve/spectrum-1d.sh b/tests/convolve/spectrum-1d.sh
index b0956614..330653f5 100755
--- a/tests/convolve/spectrum-1d.sh
+++ b/tests/convolve/spectrum-1d.sh
@@ -7,7 +7,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/cosmiccal/simpletest.sh b/tests/cosmiccal/simpletest.sh
index fa403b3b..560dfa22 100755
--- a/tests/cosmiccal/simpletest.sh
+++ b/tests/cosmiccal/simpletest.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/cat.txt b/tests/crop/cat.txt
index 161503d0..e90c86ed 100644
--- a/tests/crop/cat.txt
+++ b/tests/crop/cat.txt
@@ -4,7 +4,7 @@
 # Column 4: RA_CENTER  [deg,f64]    Right Ascension.
 # Column 5: DEC_CENTER [deg,f64]    Declination.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/crop/imgcat.sh b/tests/crop/imgcat.sh
index 64157d2a..7e2e7bc5 100755
--- a/tests/crop/imgcat.sh
+++ b/tests/crop/imgcat.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/imgcenter.sh b/tests/crop/imgcenter.sh
index 2a0644cc..3c0b9eee 100755
--- a/tests/crop/imgcenter.sh
+++ b/tests/crop/imgcenter.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/imgcenternoblank.sh b/tests/crop/imgcenternoblank.sh
index 445d8f0c..4cdb9ba2 100755
--- a/tests/crop/imgcenternoblank.sh
+++ b/tests/crop/imgcenternoblank.sh
@@ -7,7 +7,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/imgpolygon.sh b/tests/crop/imgpolygon.sh
index d19da8f2..d76703bf 100755
--- a/tests/crop/imgpolygon.sh
+++ b/tests/crop/imgpolygon.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/imgpolygonout.sh b/tests/crop/imgpolygonout.sh
index e40590e3..4aed449d 100755
--- a/tests/crop/imgpolygonout.sh
+++ b/tests/crop/imgpolygonout.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/section.sh b/tests/crop/section.sh
index 9656a238..3438ff90 100755
--- a/tests/crop/section.sh
+++ b/tests/crop/section.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/wcscat.sh b/tests/crop/wcscat.sh
index fe397e55..4a8f685c 100755
--- a/tests/crop/wcscat.sh
+++ b/tests/crop/wcscat.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/wcscenter.sh b/tests/crop/wcscenter.sh
index 78e1994d..c584f1d8 100755
--- a/tests/crop/wcscenter.sh
+++ b/tests/crop/wcscenter.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/crop/wcspolygon.sh b/tests/crop/wcspolygon.sh
index a215f797..4d073888 100755
--- a/tests/crop/wcspolygon.sh
+++ b/tests/crop/wcspolygon.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/during-dev.sh b/tests/during-dev.sh
index 8ff0969e..68dc988d 100755
--- a/tests/during-dev.sh
+++ b/tests/during-dev.sh
@@ -41,7 +41,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
diff --git a/tests/fits/copyhdu.sh b/tests/fits/copyhdu.sh
index 7fbf5605..96f7eb54 100755
--- a/tests/fits/copyhdu.sh
+++ b/tests/fits/copyhdu.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/fits/delete.sh b/tests/fits/delete.sh
index 47a06cc4..92977168 100755
--- a/tests/fits/delete.sh
+++ b/tests/fits/delete.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/fits/print.sh b/tests/fits/print.sh
index 749c0f71..4b56b3fe 100755
--- a/tests/fits/print.sh
+++ b/tests/fits/print.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/fits/update.sh b/tests/fits/update.sh
index 8e69ad2f..102f6895 100755
--- a/tests/fits/update.sh
+++ b/tests/fits/update.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/fits/write.sh b/tests/fits/write.sh
index 5083b698..735aa43a 100755
--- a/tests/fits/write.sh
+++ b/tests/fits/write.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/lib/multithread.c b/tests/lib/multithread.c
index 537505bc..002cf350 100644
--- a/tests/lib/multithread.c
+++ b/tests/lib/multithread.c
@@ -4,7 +4,7 @@ A test program to multithreaded building using Gnuastro's 
helpers.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2017-2022 Free Software Foundation, Inc.
+Copyright (C) 2017-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/tests/lib/multithread.sh b/tests/lib/multithread.sh
index 39956078..b8aa1d27 100755
--- a/tests/lib/multithread.sh
+++ b/tests/lib/multithread.sh
@@ -7,7 +7,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/lib/versioncxx.cpp b/tests/lib/versioncxx.cpp
index 6e78947a..31a21c60 100644
--- a/tests/lib/versioncxx.cpp
+++ b/tests/lib/versioncxx.cpp
@@ -4,7 +4,7 @@ A test program to get and use the version number of Gnuastro 
within C++.
 Original author:
      Mohammad Akhlaghi <mohammad@akhlaghi.org>
 Contributing author(s):
-Copyright (C) 2015-2022 Free Software Foundation, Inc.
+Copyright (C) 2015-2023 Free Software Foundation, Inc.
 
 Gnuastro is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
diff --git a/tests/lib/versioncxx.sh b/tests/lib/versioncxx.sh
index 21089c42..05784b8c 100755
--- a/tests/lib/versioncxx.sh
+++ b/tests/lib/versioncxx.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/match/kdtree-internal.sh b/tests/match/kdtree-internal.sh
index e71affe5..e497a6a2 100755
--- a/tests/match/kdtree-internal.sh
+++ b/tests/match/kdtree-internal.sh
@@ -8,7 +8,7 @@
 #     Sachin Kumar Singh <sachinkumarsingh092@gmail.com>
 # Contributing author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/match/kdtree-separate.sh b/tests/match/kdtree-separate.sh
index eabbc861..8f63d306 100755
--- a/tests/match/kdtree-separate.sh
+++ b/tests/match/kdtree-separate.sh
@@ -7,7 +7,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/match/merged-cols.sh b/tests/match/merged-cols.sh
index 8d58c076..5853ceff 100755
--- a/tests/match/merged-cols.sh
+++ b/tests/match/merged-cols.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/match/positions-1.txt b/tests/match/positions-1.txt
index 7b2c4903..93950ddd 100644
--- a/tests/match/positions-1.txt
+++ b/tests/match/positions-1.txt
@@ -2,7 +2,7 @@
 # Column 2: EFGH
 # Column 3: IJKL
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/match/positions-2.txt b/tests/match/positions-2.txt
index c4a521a0..0db0f159 100644
--- a/tests/match/positions-2.txt
+++ b/tests/match/positions-2.txt
@@ -2,7 +2,7 @@
 # Column 2: ACCU1
 # Column 3: ACCU2
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/match/sort-based.sh b/tests/match/sort-based.sh
index 5fd29d41..0e93ed94 100755
--- a/tests/match/sort-based.sh
+++ b/tests/match/sort-based.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkcatalog/aperturephot.sh b/tests/mkcatalog/aperturephot.sh
index 4cfbf18b..c3d5f2ce 100755
--- a/tests/mkcatalog/aperturephot.sh
+++ b/tests/mkcatalog/aperturephot.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkcatalog/detections.sh b/tests/mkcatalog/detections.sh
index d59b4781..fc4edad0 100755
--- a/tests/mkcatalog/detections.sh
+++ b/tests/mkcatalog/detections.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkcatalog/objects-clumps.sh 
b/tests/mkcatalog/objects-clumps.sh
index e2378e9b..a971222a 100755
--- a/tests/mkcatalog/objects-clumps.sh
+++ b/tests/mkcatalog/objects-clumps.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mknoise/addnoise.sh b/tests/mknoise/addnoise.sh
index 94b87d43..59af017a 100755
--- a/tests/mknoise/addnoise.sh
+++ b/tests/mknoise/addnoise.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/clearcanvas.sh b/tests/mkprof/clearcanvas.sh
index 462cd08b..225bc8c4 100755
--- a/tests/mkprof/clearcanvas.sh
+++ b/tests/mkprof/clearcanvas.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/clearcanvas.txt b/tests/mkprof/clearcanvas.txt
index 6f696268..19ce4f23 100644
--- a/tests/mkprof/clearcanvas.txt
+++ b/tests/mkprof/clearcanvas.txt
@@ -13,7 +13,7 @@
 # 'mkprofcat1.txt', because we are using the over-sampled image as a
 # canvas.
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/mkprof/ellipticalmasks.sh b/tests/mkprof/ellipticalmasks.sh
index 6d30cc66..7ea21bef 100755
--- a/tests/mkprof/ellipticalmasks.sh
+++ b/tests/mkprof/ellipticalmasks.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/ellipticalmasks.txt b/tests/mkprof/ellipticalmasks.txt
index f5de1b87..50d7a85a 100644
--- a/tests/mkprof/ellipticalmasks.txt
+++ b/tests/mkprof/ellipticalmasks.txt
@@ -9,7 +9,7 @@
 # Column 9:  Magnitude         [ABmag, f64]  Magnitude of profile within 
truncation radius
 # Column 10: Truncation radius [dist, f64]   Truncation radius to stop 
building profile
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/mkprof/mkprofcat1.txt b/tests/mkprof/mkprofcat1.txt
index 3f463ac1..6364ca10 100644
--- a/tests/mkprof/mkprofcat1.txt
+++ b/tests/mkprof/mkprofcat1.txt
@@ -9,7 +9,7 @@
 # Column 9:  Magnitude         [ABmag, f64]  Magnitude of profile within 
truncation radius
 # Column 10: Truncation radius [dist, f64]   Truncation radius to stop 
building profile
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/mkprof/mkprofcat2.txt b/tests/mkprof/mkprofcat2.txt
index f1da6b26..f280b308 100644
--- a/tests/mkprof/mkprofcat2.txt
+++ b/tests/mkprof/mkprofcat2.txt
@@ -9,7 +9,7 @@
 # Column 9:  Magnitude         [ABmag, f64]  Magnitude of profile within 
truncation radius
 # Column 10: Truncation radius [dist, f64]   Truncation radius to stop 
building profile
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/mkprof/mkprofcat3.txt b/tests/mkprof/mkprofcat3.txt
index 65febbc1..e128f3b1 100644
--- a/tests/mkprof/mkprofcat3.txt
+++ b/tests/mkprof/mkprofcat3.txt
@@ -9,7 +9,7 @@
 # Column 9:  Magnitude         [ABmag, f64]  Magnitude of profile within 
truncation radius
 # Column 10: Truncation radius [dist, f64]   Truncation radius to stop 
building profile
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/mkprof/mkprofcat4.txt b/tests/mkprof/mkprofcat4.txt
index 0ce8ba00..4df1a14f 100644
--- a/tests/mkprof/mkprofcat4.txt
+++ b/tests/mkprof/mkprofcat4.txt
@@ -9,7 +9,7 @@
 # Column 9:  Magnitude         [ABmag, f64]  Magnitude of profile within 
truncation radius
 # Column 10: Truncation radius [dist, f64]   Truncation radius to stop 
building profile
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/mkprof/mosaic1.sh b/tests/mkprof/mosaic1.sh
index c028ba5b..22298bf9 100755
--- a/tests/mkprof/mosaic1.sh
+++ b/tests/mkprof/mosaic1.sh
@@ -11,7 +11,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/mosaic2.sh b/tests/mkprof/mosaic2.sh
index f8bffcbd..504f8dbf 100755
--- a/tests/mkprof/mosaic2.sh
+++ b/tests/mkprof/mosaic2.sh
@@ -13,7 +13,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/mosaic3.sh b/tests/mkprof/mosaic3.sh
index 085d7a67..146b662e 100755
--- a/tests/mkprof/mosaic3.sh
+++ b/tests/mkprof/mosaic3.sh
@@ -11,7 +11,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/mosaic4.sh b/tests/mkprof/mosaic4.sh
index c2458778..bbfd200c 100755
--- a/tests/mkprof/mosaic4.sh
+++ b/tests/mkprof/mosaic4.sh
@@ -11,7 +11,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/radeccat.sh b/tests/mkprof/radeccat.sh
index 424fe3de..c0a509e1 100755
--- a/tests/mkprof/radeccat.sh
+++ b/tests/mkprof/radeccat.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/mkprof/radeccat.txt b/tests/mkprof/radeccat.txt
index 68bd52b7..e12f98e1 100644
--- a/tests/mkprof/radeccat.txt
+++ b/tests/mkprof/radeccat.txt
@@ -9,7 +9,7 @@
 # Column 9:  Magnitude         [ABmag, f64]   Magnitude of profile within 
truncation radius
 # Column 10: Truncation radius [dist,  f64]    Truncation radius to stop 
building profile
 #
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/noisechisel/noisechisel.sh b/tests/noisechisel/noisechisel.sh
index 16c4065c..ef041594 100755
--- a/tests/noisechisel/noisechisel.sh
+++ b/tests/noisechisel/noisechisel.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/prepconf.sh b/tests/prepconf.sh
index 155a5097..2cd207ba 100755
--- a/tests/prepconf.sh
+++ b/tests/prepconf.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2016-2022 Free Software Foundation, Inc.
+# Copyright (C) 2016-2023 Free Software Foundation, Inc.
 #
 # Gnuastro is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the
diff --git a/tests/script/psf-stamp.sh b/tests/script/psf-stamp.sh
index b1cd5524..ef6fc046 100755
--- a/tests/script/psf-stamp.sh
+++ b/tests/script/psf-stamp.sh
@@ -7,7 +7,7 @@
 #     Raul Infante-Sainz <infantesainz@gmail.com>
 # Contributing author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/script/radial-profile.sh b/tests/script/radial-profile.sh
index db6e5c98..a85f2a2f 100755
--- a/tests/script/radial-profile.sh
+++ b/tests/script/radial-profile.sh
@@ -7,7 +7,7 @@
 #     Raul Infante-Sainz <infantesainz@gmail.com>
 # Contributing author(s):
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/script/sort-by-night.sh b/tests/script/sort-by-night.sh
index baaee81c..ca834ad6 100755
--- a/tests/script/sort-by-night.sh
+++ b/tests/script/sort-by-night.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/segment/segment.sh b/tests/segment/segment.sh
index 1e175670..39114870 100755
--- a/tests/segment/segment.sh
+++ b/tests/segment/segment.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/statistics/basicstats.sh b/tests/statistics/basicstats.sh
index 5cd82a2b..680385de 100755
--- a/tests/statistics/basicstats.sh
+++ b/tests/statistics/basicstats.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/statistics/estimate_sky.sh b/tests/statistics/estimate_sky.sh
index 98f7a1cd..c434bb2e 100755
--- a/tests/statistics/estimate_sky.sh
+++ b/tests/statistics/estimate_sky.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/statistics/fitting-data.txt 
b/tests/statistics/fitting-data.txt
index f9039553..359c12ab 100644
--- a/tests/statistics/fitting-data.txt
+++ b/tests/statistics/fitting-data.txt
@@ -12,7 +12,7 @@
 #                               --colmetadata=2,Y \
 #                               --colmetadata=3,Yerr
 #
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/statistics/fitting-polynomial-robust.sh 
b/tests/statistics/fitting-polynomial-robust.sh
index df795c10..29c88219 100755
--- a/tests/statistics/fitting-polynomial-robust.sh
+++ b/tests/statistics/fitting-polynomial-robust.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2022 Free Software Foundation, Inc.
+# Copyright (C) 2022-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/statistics/from-stdin.sh b/tests/statistics/from-stdin.sh
index 86889930..8e375be1 100755
--- a/tests/statistics/from-stdin.sh
+++ b/tests/statistics/from-stdin.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/statistics/stdin-input.txt b/tests/statistics/stdin-input.txt
index d24e3f23..741d5f59 100644
--- a/tests/statistics/stdin-input.txt
+++ b/tests/statistics/stdin-input.txt
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/table/fits-ascii-to-txt.sh b/tests/table/fits-ascii-to-txt.sh
index 633a8159..5140ee82 100755
--- a/tests/table/fits-ascii-to-txt.sh
+++ b/tests/table/fits-ascii-to-txt.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/table/fits-binary-to-txt.sh 
b/tests/table/fits-binary-to-txt.sh
index 168811ff..478b9311 100755
--- a/tests/table/fits-binary-to-txt.sh
+++ b/tests/table/fits-binary-to-txt.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/table/sexagesimal-to-deg.sh 
b/tests/table/sexagesimal-to-deg.sh
index dbf393f3..13e3d9f5 100755
--- a/tests/table/sexagesimal-to-deg.sh
+++ b/tests/table/sexagesimal-to-deg.sh
@@ -7,7 +7,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2021-2022 Free Software Foundation, Inc.
+# Copyright (C) 2021-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/table/table.txt b/tests/table/table.txt
index 18ee9bec..651d3660 100644
--- a/tests/table/table.txt
+++ b/tests/table/table.txt
@@ -31,7 +31,7 @@
 # the 'width - precision - 1' (when everything is default, you can get
 # these values from 'lib/gnuastro/table.h').
 
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and
diff --git a/tests/table/txt-to-fits-ascii.sh b/tests/table/txt-to-fits-ascii.sh
index 32963484..c50f0ae8 100755
--- a/tests/table/txt-to-fits-ascii.sh
+++ b/tests/table/txt-to-fits-ascii.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/table/txt-to-fits-binary.sh 
b/tests/table/txt-to-fits-binary.sh
index 921db7b9..a0494061 100755
--- a/tests/table/txt-to-fits-binary.sh
+++ b/tests/table/txt-to-fits-binary.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/warp/homographic.sh b/tests/warp/homographic.sh
index 875075ca..5993c9b9 100755
--- a/tests/warp/homographic.sh
+++ b/tests/warp/homographic.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
diff --git a/tests/warp/warp_scale.sh b/tests/warp/warp_scale.sh
index 700d6d69..a9a4d886 100755
--- a/tests/warp/warp_scale.sh
+++ b/tests/warp/warp_scale.sh
@@ -6,7 +6,7 @@
 # Original author:
 #     Mohammad Akhlaghi <mohammad@akhlaghi.org>
 # Contributing author(s):
-# Copyright (C) 2015-2022 Free Software Foundation, Inc.
+# Copyright (C) 2015-2023 Free Software Foundation, Inc.
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright



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