(DOCS-15062): Finalize 4.0.2 release notes (#468)

* (DOCS-15062): Finalize 4.0.28 release notes

* fix changelog format

Author: jeff-allen-mongo

source/release-notes/4.0.txt

@@ -13,6 +13,24 @@ Release Notes for MongoDB 4.0
 Patch Releases
 --------------
 
+.. _4.0.28-release-notes:
+
+4.0.28 - January 31, 2022
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Issues fixed:
+
+- :issue:`SERVER-62065` Upgrade path from 3.6 to 4.0 can leave chunk entries without history on the shards
+- :issue:`SERVER-55648` Mongos doesn't return top-level batch-write error in case of shutdown
+- :issue:`SERVER-54064` Sessions on arbiters accumulate and cannot be cleared out
+- :issue:`SERVER-53335` Queries, updates, and deletes with non-"simple" collations may miss documents when using hashed sharding
+- :issue:`SERVER-45953` Exempt oplog readers from acquiring read tickets
+
+- `All JIRA issues closed in 4.0.28
+  <https://jira.mongodb.org/issues/?jql=project%20in%20(SERVER%2CTOOLS%2CWT)%20AND%20resolution%3D%27Fixed%27%20and%20fixversion%3D%274.0.28%27>`_
+
+- :ref:`4.0.28-changelog`
+
 .. _4.0.27-release-notes:
 
 4.0.27 - Sep 13, 2021