Hello Ludovic,

ludo@gnu.org (Ludovic Courtès) writes:

> Hi Oleg,
>
> Oleg Pykhalov <go.wigust@gmail.com> skribis:
>
>> ludo@gnu.org (Ludovic Courtès) writes:
>>
>> [...]
>>
>>> What does ‘guix package --list-generations’ show?  The output is a diff
>>> of the contents of each generation.
>>
>> My current generation before upgrade was 369.  After upgrade it's 370.
>> No changes.
>>
>> Generation 369	Oct 03 2017 13:07:34
>>  + emacs-git-auto-commit-mode 4.4.0 out
>> /gnu/store/kcihgk3k9mgilbly0r7922qgkdgg2ji3-emacs-git-auto-commit-mode-4.4.0
>>
>> Generation 370	Oct 04 2017 00:42:07	(current)
>
> What about:
>
>   diff -u /var/guix/profiles/per-user/ludo/guix-profile-{369,370}-link/manifest

This has some info!