We're currently running buildkit v12.5
- gitlab-cloud-runners https://gitlab.wikimedia.org/repos/releng/gitlab-cloud-runner/-/merge_requests/377
- WMCS runners https://gerrit.wikimedia.org/r/c/operations/puppet/+/1026949
- Trusted runners https://gerrit.wikimedia.org/r/c/operations/puppet/+/1027002
Release notes for versions since 12.5: