Checklist

Before release:

1. Check milestone is complete

    https://github.com/haskell/time/milestones

2. Pull upstream changes

    git switch master
    git pull

3. Update version numbers

    https://pvp.haskell.org/
    time.cabal
    configure.ac

4. Update changelog, add current UTC date

    date -u
    changelog.md

5. Use correct & latest GHC versions

    https://www.haskell.org/ghc/download.html
    time.cabal
        - tested-with
        - base dependency lower bound
    .devcontainer/Dockerfile
    .github/workflows/ci.yml

6. Format, build & test

    just fullbuild

7. Inspect generated haddock, if necessary

    dist-newstyle/build/*/ghc-*/time-*/doc/html/time/index.html

8. Commit and push changes to repo

    git commit -a
    git push

9. Check GitHub builds

    https://github.com/haskell/time/actions

10.  Upload to Hackage

    git clean -dXf
    autoreconf -i
    stack upload .
    http://hackage.haskell.org/package/time

11.  Tag commit

    git tag -a -s VERSION -m "Version VERSION"
    git push --tags

12.  Update ghc branch

    git switch ghc
    git merge master
    git push

13.  Restore local branch for next development

    git switch master

14.  Close completed milestone

    https://github.com/haskell/time/milestones

15.  Inform GHC team

    https://gitlab.haskell.org/ghc/ghc/-/issues