Subject: bug#79409: 31.0.50; project.el uses define-completion-category but depends on 26.1

From: Daniel Mendler <[email-masked]>
Date: Mon, 08 Sep 2025 18:18:59 +0200

Eshel Yaron <[email-masked]> writes:

> Daniel Mendler writes:
>
>> Since a few days ago project.el uses define-completion-category which is
>> not yet available on old Emacs versions. project.el is published on ELPA
>> and depends on Emacs 26.1.
>
> Right, thanks, should now be fixed on master (with commit 6b6cfa8e40b).

Thanks, I didn't see that you've already sent a mail to devel a short
while before my report. I wonder if some fallback code is needed, such
that project-buffer is treated like the buffer completion category on
older Emacs versions?

Daniel