This is a summary of a recent thread [1].

Traditional branches (such as "f29") have their EOL (end of life) encoded
in the name. But what about stream branches [2] (such as "2.4" or "latest")?

Stream branches of RPM packages would always have an EOL associated with
them. The format would be on of the following:
a) A date — mostly tied to an upstream version and its EOL.
b) A specific Fedora release — for release-specific packages.
c) Forever — rolling forward with upstream, latest development versions,
etc.

Module streams would inherit their EOL from the packages they include — the
earliest EOL would win. This could be optionally overridden on the module
stream level by specifying one of the following:
a) A date.
b) A specific Fedora release.

There would be a policy that a module can reach its EOL in the middle of a
Fedora release to prevent madness.

We need a way to specify the EOL value and to manage it over time, because
it might change. For RPM stream branches, there is currently a way to
specify an EOL value when requesting the branch [3] — the actual format
might change based on this discussion. However, I'm not aware of a way to
change the value if necessary nor a process associated with that. Also,
there is currently no way to specify an EOL for modules.

After we figure this out, we also need to make sure the build system takes
that into account (some recent progress [4]) and that the client tooling
(mostly DNF) presents that to the user.

So... any comments to the concept? Any ideas about workflows or processes
of managing the EOL values?


[1] Previous thread:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/K4FUOQHQSRAAI3PUUGXAC6CXEN27Y2JH/
[2] Now "stream branches", formerly "arbitrary branches":
https://fedoraproject.org/wiki/Changes/ArbitraryBranching
[3] Requesting a stream branch + specifying its EOL:
https://docs.fedoraproject.org/en-US/modularity/making-modules/adding-new-modules/#_repositories_and_stream_branches_existing_packages
[4] https://pagure.io/modularity/issue/102

-- 

Adam Šamalík
---------------------------
Software Engineer
Red Hat
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