Hi,

We run a diverse fleet of Linux laptops and desktops (at Facebook), and 
sometimes there are regressions that affect some of our fleet but not others.

To pick the latest example:
- pulseaudio 1.3.99.1 (both -1 and -2) breaks Bluetooth support on a Dell XPS 
15: https://bugzilla.redhat.com/show_bug.cgi?id=1814556
- but it fixes HDA audio input on ThinkPad T490s and X1 Carbon: 
https://bodhi.fedoraproject.org/updates/FEDORA-2020-c3e19f5098

We've had similar issues with kernel regressions (e.g. 5.4 kernels had issues 
with Intel GPUs, and on ThinkPads with Nvidia GPUs).

(Ideally we catch all this before they land -- over the medium term I'm trying 
to find a way to encourage our users to help test updates)

Would it be possible to keep 2 or 3 versions of the same package in the updates 
repo, so we can easily keep some of our fleet at a previous version known to 
work on that particular hardware? And is there a process for proposing this 
(e.g. file a ticket on Pagure)?

Our workaround right now is to check in the older versions in our internal repo.

Thanks,

-- 
Michel Alexandre Salim
FAS: salimma
work email: michel AT fb DOT com
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