Describe the issue: We need to document the changes between major releases notifying customers of the changes to command outputs, commands added/removed, daemon changes, core ceph changes...etc This is documented upstream: https://docs.ceph.com/en/latest/releases/nautilus/#upgrade-compatibility-notes Describe the task you were trying to accomplish: Suggestions for improvement: Include these change notes downstream in the release notes. Document URL: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/4.0/html/release_notes/index Chapter/Section Number and Title: Product Version: 4.0 Environment Details: Any other versions of this document that also needs this update: Additional information: