bug#22025: Emacs 25 corrupts Emacs 24 .emacs.desktop.

[Alan Mackenzie]

Hello, Drew.

On Thu, Dec 03, 2015 at 07:35:24AM -0800, Drew Adams wrote:
> That all sounds great.  Thanks for working on this and for answering
> my questions about it so clearly.

> > The current plan is as follows: a desktop file will stay in format
> > version 206 (which works with any Emacs from 22.1) until the user
> > positively decides to upgrade it to 208, which she will do with C-u M-x
> > save-desktop.  If, for any reason, a desktop needs to be put back to
> > 206, this can be done with C-u C-u M-x save-desktop.  There are
> > programmatic equivalents to these command options.

> I don't really understand why the upgrade is not automatic, but
> I don't need to.

But I think you should.  With an automatic upgrade, somebody "just
trying out" Emacs 25.1 would be going to get very upset on finding out
that their precious .emacs.desktop had suddenly been rendered unusable
with their current Emacs version.

This might be misinterpreted as a dirty trick to force people to upgrade
to Emacs 25.1.

> Sounds good.  Thx.

-- 
Alan Mackenzie (Nuremberg, Germany).