PendingReleaseNotes: Specify the change in behaviour of assigning to …

…public_netw

Signed-off-by: Willem Jan Withagen <wjw@digiware.nl>

PendingReleaseNotes

@@ -7,3 +7,12 @@
    in old version would operate on different priority ranges
    than new ones. Once upgraded, cluster will operate on
    consistent values.
+
+ * When assigning a network to then public network and not to
+   the cluster network the network specification of the public
+   network will be used for the cluster network as well.
+   In the older version this would lead to cluster services
+   being bound to 0.0.0.0:<port>, thus actually making the
+   cluster service even more publicly available than the
+   public services. When only specifying a cluster network it
+   will still result in the public services binding to 0.0.0.0.