Internal

Internal documentation for project maintainers

Create a release

Prepare a GitHub release-draft
Change .github_changelog_generator config accordingly to new release tag (increase future release)
Change version constants in src/Constants.php
Adjust the file UPGRADING.md with version specific information
Create CHANGELOG.md with github-changelog-generator by running github_changelog_generator kevinpapst/kimai2
Edit the release-draft and add the "Full changelog" link + everything from CHANGELOG.md related to the new version
Push a release branch and merge it as last PR into master
Create the release
Post a new issue at YunoHost tracker for Kimai 2
Post a new issue at Docker for Kimai 2