Release 16.0

[Janekdererste]

Next Release before April 2024

This is issue is here so that we have a checklist for the next release.

We need to tag a new release. For the core repository, this means:

0. Pre-release 24.0-RC1

• Create a pre-release 24.0-RC1 for branch master.
  This step is run to make sure the release workflow is up-to-date: https://github.com/matsim-org/matsim-libs/blob/master/.github/workflows/deploy-on-release-created.yaml. It will be later used for releasing 24.0 (step 3)
• Update the license file with the correct year and contributors.

1. Prepare the 24.x branch

• Create 24.x branch that points to the last commit with the version 16.0-SNAPSHOT on master.
• Update GitHub workflows by replacing master with 24.x in the following lines:
  • https://github.com/matsim-org/matsim-libs/blob/master/.github/workflows/verify-push.yaml#L6
  • https://github.com/matsim-org/matsim-libs/blob/master/.github/workflows/deploy-on-pr-merge.yaml#L6
  • https://github.com/matsim-org/matsim-libs/blob/master/.github/workflows/deploy-on-pr-merge.yaml#L9
• Change version numbers in all poms to 24.1-SNAPSHOT
mvn versions:set -DnewVersion=24.1-SNAPSHOT
• Push 24.x
• Check if the branch protection rules apply for 24.x.
  From this moment on, updates and fixes to 24.x will go through the same PR review and release process like on master.
• Create PR from master to 24.x labelled "LAST CALL FOR 16.0!!!!!" This way, people might be aware that the release is coming.

2. Prepare the master branch for 25.0-SNAPSHOT

• Check out the latest master branch and change version numbers in all poms to 25.0-SNAPSHOT
mvn versions:set -DnewVersion=25.0-SNAPSHOT
• Push it, make a PR, and merge it.
  From this moment on, the master branch is a development branch for the future version 17.0.

3. Release 24.0

• Create a tag 24.0 that points exactly to the last commit with the version 16.0-SNAPSHOT on 24.x.
• Push the tag: git push origin 24.0
• Create a release for the 24.0 tag. This will trigger the release workflow that deploys the 24.0 jars to the MATSim maven repo and also builds and attaches matsim-24.0-release.zip under the 24.0 release assets.