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Re: merged /usr



On Sat, 14 Aug 2021 at 14:33:44 +0200, David Kalnischkies wrote:
> the current 'transition' plan is to have the
> release notes nudge all people who upgrade instead of reinstall their
> systems, chroots and what not to please do it for all of them by hand
> at a to be specified flag day someday between now and bookworm
> freeze

That is certainly not my plan. It might be someone's plan, but it is not
one that I would support.

I think the earliest flag day that would be possible (for requiring merged
/usr, or for completely undoing merged /usr, or for any similarly "big"
transitional path) is the bookworm release date. We specifically don't
support skipping a release, so the fastest possible timeline for an
archive-wide transition goes something like this:

1. during bookworm development: interested people make the transition as
   robust and graceful as possible; package maintainers must make their
   packages compatible with the transition (if they have not already) but
   must not assume that the transition has already taken place

2. bookworm release: systems must transition at or before the upgrade to
   bookworm (bullseye systems are not required to transition until/unless
   they are upgraded)

3. during bookworm+1 development (testing/unstable post bookworm):
   package maintainers may assume the transition has taken place

    smcv


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