We're currently using v2.5, the newest version is 2.9.
https://goharbor.io/docs/2.9.0/administration/upgrade/
- upgrade lima-kilo
- upgrade builds-builder
- test locally
- update puppet config
- upgrade toolsbeta
- upgrade tools
NOTE: The official upgrade docs don't fully apply to our install as we're using puppet. If you have reached this task from the future wondering how to do an upgrade, better check the docs here: https://wikitech.wikimedia.org/wiki/Portal:Toolforge/Admin/Harbor#Upgrade_Harbor