Steps to release a new version

1. In the composer.json, update the branch-alias entry to point to the release after the upcoming release.
2. In the CHANGELOG.md, create a new section with subheadings for changes after the upcoming release, set the version number for the upcoming release, and remove any empty sections.
3. Update the target milestone in the Dependabot configuration.
4. Create a pull request "Prepare release of version x.y.z" with those changes.
5. Have the pull request reviewed and merged.
6. Tag the new release.
7. In the Releases tab, create a new release and copy the change log entries to the new release.
8. Post about the new release on social media.

Working with git tags

List all tags:

git tag

Locally create a tag from the current HEAD commit and push it to the git remote origin:

git tag -a v4.2.0 -m "Tag version 4.2.0"
git push --tags

Locally create a GPG-signed tag from the current HEAD commit and push it to the git remote origin:

git tag -a -s v4.2.0 -m "Tag version 4.2.0"
git push --tags