doc/release-notes: fix bobtail version

The tunables were mostly supported by later argonaut point releases,
but not officially.  Let's stick with bobtail though!

Signed-off-by: Sage Weil <sage@inktank.com>

diff --git a/doc/release-notes.rst b/doc/release-notes.rst
index 8113fca69911c9efee5fcd404b4a082e8a45a440..115a0925643ebf95d3a622ab0470eb640add9eeb 100644 (file)
--- a/doc/release-notes.rst
+++ b/doc/release-notes.rst
@@ -15,7 +15,7 @@ Upgrading
 ~~~~~~~~~
 
 * We now default to the 'bobtail' CRUSH tunable values that are first supported
-  by Ceph clients in bobtail (v0.48) and Linux kernel version v3.9.  If you
+  by Ceph clients in bobtail (v0.56) and Linux kernel version v3.9.  If you
   plan to access a newly created Ceph cluster with an older kernel client, you
   should use 'ceph osd crush tunables legacy' to switch back to the legacy
   behavior.  Note that making that change will likely result in some data