(DOCSP-10898) Complete release notes (#302)

Author: zach-carr

source/release-notes.txt

@@ -20,6 +20,44 @@ Release Notes for |k8s-op-full|
       Production Notes </reference/production-notes>
       Known Issues </reference/known-issues>
 
+.. _ent-op-1.5.4:
+
+|k8s-op-full| 1.5.4
+-------------------
+
+*Released 2020-06-22*
+
+MongoDB Resource Changes
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Allows modification of authentication settings using the |com| UI if 
+  the :setting:`spec.security.authentication` setting is not provided 
+  in the MongoDB resource object definition.
+
+Kubernetes Operator Changes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Supports Helm :ref:`installation <install-k8s>` with 
+  ``helm install`` in addition to ``helm template | kubectl apply``.
+  ``helm install`` is now the recommended way to install with Helm.
+
+- Supports configuring the MongoDB Agent authentication mechanism 
+  independently from the cluster authentication mechanism.
+
+- Supports configuring monitoring for the Application Database to send 
+  metrics to |onprem|. To learn more about the monitoring function of 
+  the MongoDB Agent, see 
+  :opsmgr:`MongoDB Agent </tutorial/nav/mongodb-agent/>`.
+
+Bug Fixes
+~~~~~~~~~
+
+- Fixes a bug that affected transitioning authentication mechanisms 
+  from X.509 to SCRAM.
+
+- Fixes a bug that prevented the MongoDB Agent from reaching a goal 
+  state if SCRAM configuration was changed in the |onprem| UI.
+
 .. _ent-op-1.5.3:
 
 |k8s-op-full| 1.5.3