The interlock issue #589497 requires 18.9 release notes and deprecation docs that reference: - Prefer mode as the path to online GC and future legacy removal - 19.0 target for default-on in Omnibus (Charts removed from scope per `gitlab-com/Product#14345`) - Dependency on Geo backup/restore support for end-to-end safety The release post is in review, but the release notes and deprecation page entries have not been created. Parent: #589497