(DOCSP-10134): Release Notes v1.5.1 (#260)

* (DOCSP-10134): Release Notes v1.5.1

* Tech review

* Copy review

Author: melissamahoney-mongodb

source/release-notes.txt

@@ -20,6 +20,38 @@ Release Notes for |k8s-op-full|
       Production Notes </reference/production-notes>
       Known Issues </reference/known-issues>
 
+.. _ent-op-1.5.1:
+
+|k8s-op-full| 1.5.1
+-------------------
+*Released 2020-04-30*
+
+Deprecates the generation of |tls| certificates by the |k8s-op-short|.
+If you use |k8s-op-short|-generated certificates, warning messages now
+appear in the |k8s-op-short| logs. To configure secure deployments, see
+:ref:`k8s-secure-resources`.
+
+Bug Fixes
+~~~~~~~~~
+
+Fixes an issue where when no authentication is configured by the
+|k8s-op-short|, the |k8s-op-short| disables authentication in |com|.
+The |k8s-op-short| no longer disables authentication unless you
+explicitly set :setting:`spec.security.authentication.enabled` to
+``false``.
+
+Known Issues
+~~~~~~~~~~~~
+
+When you configure the 
+:opsmgrkube:`spec.statefulSet.spec` and 
+:opsmgrkube:`spec.backup.statefulSet.spec` settings of the
+:ref:`MongoDBOpsManager <plan-om-resource>` resource, you can only
+configure the :opsmgrkube:`spec.statefulSet.spec.template` and
+:opsmgrkube:`spec.backup.statefulSet.spec.template` fields. Any other
+:opsmgrkube:`spec.statefulSet.spec` or 
+:opsmgrkube:`spec.backup.statefulSet.spec` field has no effect.
+
 .. _ent-op-1.5.0:
 
 |k8s-op-full| 1.5.0