* MGR: MGR's always-on modulues/plugins can now be force-disabled. This can be
necessary in cases where MGR(s) needs to be prevented from being flooded by
the module commands when coresponding Ceph service is down/degraded.
+ * CephFS: The ``ceph fs volume create`` command now allows users to pass
+ metadata and data pool names to be used for creating the volume. If either
+ is not passed or if either is a non-empty pool, the command will abort.
+* CephFS: The ``ceph fs subvolume snapshot getpath`` command now allows users
+ to get the path of a snapshot of a subvolume. If the snapshot is not present
+ ``ENOENT`` is returned.
+
+* CephFS: Modifying the FS setting variable "max_mds" when a cluster is
+ unhealthy now requires users to pass the confirmation flag
+ (--yes-i-really-mean-it). This has been added as a precaution to tell the
+ users that modifying "max_mds" may not help with troubleshooting or recovery
+ effort. Instead, it might further destabilize the cluster.
+
+
>=19.0.0