[Bug 2046871] Re: migrate to upstream release/coreNN branch

[Lucas Kanashiro]

Thanks for the patch @vicamo!

The proposed changes look good, but the epoch addition is always subject
of some discussion. I brought this bug to the #ubuntu-devel IRC channel
and got some comments from people there that I'd like to share with you
here.

First, we need to understand the upstream versioning schema, do you
think it might change again in the future? It seems to me that it is not
quite stable, and once we add a epoch it might become a bigger problem
in the future if that happens.

Considering that we need and want to add a epoch, maybe it is a better
idea if we use 1:0~84 instead of 1:84. So if for some reason upstream
starts to use a lower version we do not need to bump the epoch.

There is no process in Ubuntu to add epoch to a version string in a
package, but I believe it is a good idea to brought this to a bigger
audience before uploading. If you feel comfortable I'd recommend to
email ubuntu-devel to ask for advice and get a consensus from more
developers.

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https://bugs.launchpad.net/bugs/2046871

Title:
  migrate to upstream release/coreNN branch

Status in backport-iwlwifi-dkms package in Ubuntu:
  In Progress

Bug description:
  In the past we're tracking the upstream master branch and create new
  builds upon the lastest HEAD available at the moment. This, however,
  creates ambiguity for tracking backport-iwlwifi development &
  releases, because the upstream puts more emphasis on the coreNN
  releases instead of the development branch master when investigating
  support of new hardware models.

  Currently backport-iwlwifi-dkms/noble, versioned 11510-0ubuntu1, is
  built from upstream revision 11520, which maps to upstream git commit
  41e354fb5f32 that is a few commits behind the release/core84 HEAD
  commit 6d8764841123 (revision 11517). To migrate to release/core84
  branches, it follows we will have to rebase our work to release/core84
  HEAD and to fix debian version with an additional epoch. The proposed
  new version nubmer is 1:84.<rev>-git<hash>-0ubuntu1.

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