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

[Drew Adams]

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.

Sounds good.  Thx.