DOCSP-15018 Platform Support v5.0 changelog entry

Author: andf-mongodb

source/release-notes/5.0.txt

@@ -113,6 +113,25 @@ Structured Logging
 Platform Support
 ----------------
 
+Removed Platforms
+~~~~~~~~~~~~~~~~~
+
+MongoDB 5.0 removes support for the following platforms:
+
+- **RHEL / CentOS / Oracle 7** on the
+  :ref:`PPC64LE <prod-notes-supported-platforms-PPC64LE>` and
+  :ref:`s390x <prod-notes-supported-platforms-s390x>` architectures
+
+- **SLES 12** on the :ref:`s390x <prod-notes-supported-platforms-s390x>`
+  architecture
+
+- **Ubuntu 18.04** on the
+  :ref:`PPC64LE <prod-notes-supported-platforms-PPC64LE>` and
+  :ref:`s390x <prod-notes-supported-platforms-s390x>` architectures
+
+See :ref:`prod-notes-supported-platforms` for the full list of platforms
+and architectures supported in MongoDB 5.0.
+
 .. _5.0-rel-notes-shell:
 
 Mongo Shell