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From: Alan Mackenzie <acm@muc.de>
To: 22025@debbugs.gnu.org
Subject: bug#22025: Emacs 25 corrupts Emacs 24 .emacs.desktop.
Date: Fri, 27 Nov 2015 08:38:37 +0000	[thread overview]
Message-ID: <20151127083837.GB1782@acm.fritz.box> (raw)

Hello, Emacs

Having recently saved a desktop in Emacs 24.5, run Emacs 25, allowing
desktop to load all ones files.  Exit Emacs 25.

Start Emacs 24.5 again.  The desktop fails to load.  This is a Bad
Thing.

Diagnosis
---------

Emacs 25 has read a version 206 .desktop file, but written a version 208
file on termination.  Emacs 24 cannot execute this version.

There was no yes-or-no-p asking "are you sure you want to convert your
desktop to a format incompatible with previous Emacs versions?".

Manually restoring a .desktop to version 206 is fraught with
difficulties, even for somebody (myself) who understands the issues
reasonably well, and has an old version of .desktop saved "just in
case".

Recommendation
--------------

Emacs 25, having loaded a version 206 .desktop, should save it in the
same format until the user has positively consented to it being
converted to version 208.

-- 
Alan Mackenzie (Nuremberg, Germany).





             reply	other threads:[~2015-11-27  8:38 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-27  8:38 Alan Mackenzie [this message]
2015-11-27  9:05 ` bug#22025: Emacs 25 corrupts Emacs 24 .emacs.desktop Eli Zaretskii
2015-11-27  9:47   ` Alan Mackenzie
2015-11-27 10:23     ` Eli Zaretskii
2015-11-27 11:39       ` Alan Mackenzie
2015-11-27 12:27       ` Andy Moreton
2015-12-01 12:19   ` Alan Mackenzie
2015-12-01 15:43     ` Eli Zaretskii
2015-12-01 17:01       ` Alan Mackenzie
2015-12-01 17:46         ` Drew Adams
2015-12-02 12:35           ` Alan Mackenzie
2015-12-02 14:47             ` Drew Adams
2015-12-01 18:46         ` Eli Zaretskii
2015-12-02 11:27           ` Alan Mackenzie
2015-12-02 13:16             ` Andy Moreton
2015-12-02 13:50             ` Eli Zaretskii
2015-12-03  8:40               ` Alan Mackenzie
2015-12-03 10:30                 ` Eli Zaretskii
2016-01-15 16:18                   ` Alan Mackenzie
2016-01-15 18:31                     ` Eli Zaretskii
2016-01-18 13:37                       ` Alan Mackenzie
     [not found]                 ` <<83mvtrj02w.fsf@gnu.org>
2015-12-03 14:33                   ` Drew Adams
2015-12-03 14:57                     ` Alan Mackenzie
2015-12-03 15:35                       ` Drew Adams
2015-12-03 15:44                         ` Alan Mackenzie
2019-09-29 21:17 ` Stefan Kangas
     [not found] <<20151127083837.GB1782@acm.fritz.box>

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