doc: note simpler MDS upgrade procedure for v16.2.6

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>

diff --git a/doc/releases/pacific.rst b/doc/releases/pacific.rst
index 4f07f8c5ea689f7601aad74b3831775ddb240e65..c53cfea20736ac29ed10f418867f1babcafdbd26 100644 (file)
--- a/doc/releases/pacific.rst
+++ b/doc/releases/pacific.rst
@@ -20,6 +20,13 @@ Notable Changes
   For more details, see:
   https://docs.ceph.com/en/latest/rados/operations/placement-groups/
 
+* CephFS: the upgrade procedure for CephFS is now simpler. It is no longer
+  necessary to stop all MDS before upgrading the sole active MDS. After
+  disabling standby-replay, reducing max_mds to 1, and waiting for the file
+  systems to become stable (each fs with 1 active and 0 stopping daemons), a
+  rolling upgrade of all MDS daemons can be performed.
+
+
 Changelog
 ---------