(DOCSP-7180): Added MEKO v1.2.4 release notes.

Author: Tony Sansone

source/release-notes.txt

@@ -12,6 +12,16 @@ Release Notes for |k8s-op-full|
    :depth: 1
    :class: singlecol
 
+.. _ent-op-1.2.4:
+
+|k8s-op-full| 1.2.4
+-------------------
+
+*Released 2019-10-02*
+
+- Increases stability of Sharded Cluster deployments.
+- Improves internal testing infrastructure.
+
 .. _ent-op-1.2.3:
 
 |k8s-op-full| 1.2.3
@@ -30,7 +40,6 @@ Release Notes for |k8s-op-full|
   operator is now more conservative in resource updates both on
   |k8s| and |com|.
 
-
 .. _ent-op-1.2.2:
 
 |k8s-op-full| 1.2.2