We do have a release notes page, but it's really not interesting content: updates of some third-party frontend or backend packages that users never actually see

We do have a release notes page, but it's really not interesting content: updates of some third-party frontend or backend packages that users never actually see, fixed a typo, minor css alignment, ... We do announce when there is a user-visible and significant issue or update, but that's quite rare, maybe once every 6 months or more.