Release tracking ticket for 8.10.6

This is the template to be used to create release tracking tickets. Copy this into a new issue and fill in the TODOs. Those items marked with major-only can be ignored for minor releases.

This is the release checklist for the %8.10.6 milestone. See #16816 for the template that this was derived from.

Pre-release checklist

• Ensure that submodules are on released tags (the below is produced using this script):
  • libraries/Cabal: version 3.2.1.0
  • libraries/Win32: version 2.6.2.0
  • libraries/array: version 0.5.4.0
  • libraries/binary: version 0.8.8.0
  • libraries/bytestring: version 0.10.12.0
  • libraries/containers: version 0.6.5.1
  • libraries/deepseq: version 1.4.4.0-r2
  • libraries/directory: version 1.3.6.0
  • libraries/exceptions: version 0.10.4
  • libraries/filepath: version 1.4.2.1-ghc2
  • libraries/haskeline: version 0.8.0.1
  • libraries/mtl: version 2.2.2
  • libraries/parsec: version 3.1.14.0-ghc1
  • libraries/pretty: version 1.1.3.6
  • libraries/process: version 1.6.9.0
  • libraries/stm: version 2.5.0.1
  • libraries/terminfo: version 0.4.1.4-ghc1
  • libraries/text: version 1.2.4.1
  • libraries/time: version 1.9.3
  • libraries/transformers: version 0.5.6.2
  • libraries/unix: version 2.7.2.2-ghc1
  • libraries/xhtml: version 3000.2.2.1
  • utils/haddock: version 2.24.2-release
  • utils/hsc2hs: version 0.68.7
• Non-released submodules up-to-date:
  • nofib
  • libffi-tarballs
  • libraries/integer-gmp/gmp/gmp-tarballs
• Release notes (docs/users_guide/x.y.z-notes.rst) written
• Release notes linked in docs/users_guide/index.rst
• autoconf scripts updated
• Check that Unicode database in base (libraries/base/cbits/README.Unicode) reflects current standard release (http://www.unicode.org/versions/latest/)
• LlvmVersion in configure.ac is targetting intended LLVM version
• Release notes mentions LLVM version requirement
• llvm-targets file updated
• Changelogs updated (these can be checked using .gitlab/linters/check-changelogs.sh):
  • libraries/ghc-prim
  • libraries/integer-gmp
  • libraries/integer-simple
  • libraries/hpc
  • libraries/base
• Verify that the ~"backport needed" label has no more issues/merge requests needing backport
• Verify that all CI builds are green before moving to release checklist

Release checklist

• Push a provision provisional release commit to trigger the release builds using git push -o ci.variable="RELEASE_JOB=yes"
• Wait until builds finish; verify that they finished successfully
• Fetch release artifacts TODO: documentation
• Sign and push release artifacts to downloads.haskell.org [TODO: documentation]
• Make a release tag
• Release/revise GHC-maintained libraries on Hackage using this script:
  • libraries/base
  • libraries/ghc-prim
  • libraries/array
  • libraries/stm
  • libraries/ghc-heap
  • libraries/ghc-compact
  • libraries/ghc-boot
  • libraries/ghc-boot-th
  • libraries/hpc
  • libraries/libiserv
  • libraries/template-haskell
  • libraries/ghc-bignum
• Update ghc/homepage>:
  • Write download page (see ghc/homepage>)
  • Add news item to index.html
  • Add link to download.shtml
  • Look over changes locally
  • Add release announcement to GHC blog
  • Push changes to master
• Announce on: GHC developers <ghc-devs@haskell.org>, GHC Users <glasgow-haskell-users@haskell.org>, Haskell Cafe <haskell-cafe@haskell.org>
• Announce on: Haskell Discourse, /r/haskell, Twitter