DOCS-14996 add platform no longer supported messaging (#286)

* DOCS-14996 add platform no longer supported messaging

* fix ~~~ in compatibility notes

* update format

* update 4.4.11 rst platform support header

* Update 4.4.11.rst

* Update 4.4.11.rst

* Update 4.4.txt

Author: ianf-mongodb

source/includes/changelogs/releases/4.4.11.rst

@@ -3,6 +3,21 @@
 4.4.11 Changelog
 ----------------
 
+Platform Support
+~~~~~~~~~~~~~~~~
+
+Starting in MongoDB 4.4.11 the following platforms are no longer supported:
+
+Enterprise Edition
+``````````````````
+
+- Ubuntu 18.04 PPC64LE
+
+Community Edition
+`````````````````
+
+- :abbr:`RHEL (Red Hat Enterprise Linux)`-72-s390x
+
 Sharding
 ~~~~~~~~
 

source/release-notes/4.4-compatibility.txt

@@ -13,6 +13,20 @@ Compatibility Changes in MongoDB 4.4
 The following 4.4 changes can affect compatibility with older
 versions of MongoDB.
 
+Platform Support
+----------------
+
+Starting in MongoDB 4.4.11 the following platforms are no longer supported:
+
+Enterprise Edition
+~~~~~~~~~~~~~~~~~~
+
+- Ubuntu 18.04 PPC64LE
+
+Community Edition
+~~~~~~~~~~~~~~~~~
+
+- :abbr:`RHEL (Red Hat Enterprise Linux)`-72-s390x
 
 Removed Commands
 ----------------

source/release-notes/4.4.txt

@@ -1485,6 +1485,12 @@ MongoDB 4.4 removes support for the following platforms:
 
 - **macOS 10.12**
 
+- **Ubuntu 18.04 PPC64LE**
+
+- Starting in MongoDB 4.4.11, Community Edition - **RHEL-72-s390x**
+
+- Starting in MongoDB 4.4.11, Enterprise Edition - **Ubuntu 18.04 PPC64LE**
+
 See :ref:`prod-notes-supported-platforms` for the full list of platforms
 and architectures supported in MongoDB 4.4.