DOCS-15272 addition (#1053)

Author: jeff-allen-mongo

source/reference/command/count.txt

@@ -161,10 +161,10 @@ Definition
 Stable API Support
 ------------------
 
-Starting in MongoDB 6.0, the ``count`` command is included in
-:ref:`Stable API <stable-api>` V1. To use the ``count`` command in the
-Stable API, you must connect your driver to a deployment that is running
-MongoDB 6.0 or greater.
+Starting in MongoDB 6.0 (and 5.0.9), the ``count`` command is included
+in :ref:`Stable API <stable-api>` V1. To use the ``count`` command in
+the Stable API, you must connect your driver to a deployment that is
+running MongoDB 6.0 or greater.
 
 Behavior
 --------