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 latest LTS resolver

    https://www.stackage.org/lts
    stack.yaml

6. Use correct & latest GHC versions

    https://www.haskell.org/ghc/download.html
    fullcheck
    fullcheck.ps1
    time.cabal
        - tested-with
        - base dependency lower bound
    .github/workflows/ci.yml

7. Use latest stack

    stack upgrade
    stack --version

8. Format source

    just format

9. Build & test

    just fullbuild

10. Run benchmarks

    stack bench

11. Inspect generated haddock, if necessary

    dist/doc/html/time/index.html

12. Commit and push changes to repo

    git commit -a
    git push

13. Check builds (these can be done in parallel)

13a. Check GitHub build

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

13b. Build and test on 32-bit Linux machine

    git switch master
    just fullbuild

13c. Build and test on FreeBSD machine

    git switch master
    just fullbuild

13d. Build and test on Windows

    (in PowerShell)
    Set-ExecutionPolicy -Scope CurrentUser RemoteSigned
    git switch master
    .\fullcheck

14.  Upload to Hackage

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

15.  Tag commit

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

16.  Update ghc branch

    git switch ghc
    git merge master
    git push

17.  Restore local branch for next development

    git switch master

18.  Close completed milestone

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

19.  Inform GHC team

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