Eli Zaretskii <eliz@gnu.org> writes:

>> From: Philip Kaludercic <philipk@posteo.net>
>> Cc: Joseph Turner <joseph@breatheoutbreathe.in>,  68317@debbugs.gnu.org
>> Date: Tue, 09 Jan 2024 19:25:44 +0000
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> 
>> >> version-to-list: Invalid version syntax: ‘c99367ebc2f0afe0baaf2f5e5ca1ad9d62ba6e21’ (must start with a number)
>> >
>> > Sounds like package-vc-commit should be modified to produce a valid
>> > version string (which SHA1 is not)?  Philip?
>> 
>> We can also adjust `package-menu--version-predicate' to handle
>> non-version numbers, which I think would be more robust.
>
> Fine by me, but can this be done safely enough for emacs-29?

This would be a simple implementation, I don't know if it is safe enough
for you: