DOCS-11248: asserts.wranings = 0

Author: kay-kim

source/reference/command/serverStatus.txt

@@ -160,8 +160,12 @@ asserts
 
 .. serverstatus:: asserts.warning
 
-   The number of warnings raised since the MongoDB process started.
-   Check the log file for more information about these warnings.
+   .. versionchanged:: 4.0
+
+   Starting in MongoDB 4.0, the field returns zero ``0``.
+
+   In earlier versions, the field returns the number of warnings raised
+   since the MongoDB process started.
 
 .. serverstatus:: asserts.msg
 

source/release-notes/4.0-compatibility.txt

@@ -84,9 +84,12 @@ uses master-slave replication, you must upgrade to a replica set.
 To convert your master-slave replication, see
 :ref:`convert-master-slave-to-replica-set`.
 
+.. _4.0-compatibility-general:
+
 General
 -------
 
 - Remove ``mongoperf``.
 
-
+- The :dbcommand:`serverStatus` command now always returns ``0`` for
+  the :serverstatus:`asserts.warning` field.