what's the plan with llvm-toolchain-*

[Paul Gevers]

Dear LLVM maintainers,

As a Release Team member I'm wondering what your plan is with the
different version of llvm-toolchain-* we have in unstable and testing.
Currently 4 versions in unstable [1], of which 2 are in testing (9 and
11) [2]. We have a transition bug open to track the removal of 9 [3]. I
notice that packages start to (build) depend on one of the two newer
version in unstable and fail to migrate as the two latest llvm versions
are not migrating due to RC bugs. After 60 days, these packages are
considered to have an RC bug in testing (for being too long out-of-sync).

We'd also like to limit the amount of llvm versions we have in testing.
Mostly at the time of release, but in preparation of that it's good to
ensure we at any time have only a limited set.

So, please share your plans with us.

Paul
Note: If you don't intent newer versions of llvm-toolchain to migrate to
testing for a while, I suggest you upload to experimental, to avoid
raising expectations for other Debian Developers.

[1]
paul at mulciber ~ $ rmadison llvm-toolchain-9 llvm-toolchain-11
llvm-toolchain-12 llvm-toolchain-13 --suite=unstable
llvm-toolchain-11 | 1:11.1.0-4    | unstable   | source
llvm-toolchain-12 | 1:12.0.1-8    | unstable   | source
llvm-toolchain-12 | 1:12.0.1-9    | unstable   | source
llvm-toolchain-12 | 1:12.0.1-10   | unstable   | source
llvm-toolchain-13 | 1:13.0.0-5    | unstable   | source
llvm-toolchain-9  | 1:9.0.1-20    | unstable   | source

[2]
paul at mulciber ~ $ rmadison llvm-toolchain-9 llvm-toolchain-11
llvm-toolchain-12 llvm-toolchain-13 --suite=testing
llvm-toolchain-11 | 1:11.1.0-4    | testing    | source
llvm-toolchain-9  | 1:9.0.1-20    | testing    | source

[3] https://release.debian.org/transitions/html/llvm-9-rm.html



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