nit

Author: terakilobyte

source/whats-new.txt

@@ -82,7 +82,7 @@ What's New in 4.0
 .. important::
 
    In this release of the driver, the deprecated ``collection.count()`` method was inadvertently changed to
-   behave like ``collection.countDocuments()``.
+   behave like ``collection.countDocuments()``. This behavior is corrected in :ref:`version 4.4 <version-4.4>`.
 
 New features of the 4.0 Node.js driver release include: