Update CHANGES.md

Author: magoorden

CHANGES.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 ## [Unreleased]
 * Added CHANGES.md to track changes between releases.
 * Added the collection of performance statistics.
+* Added bdd_used_nodes_count() that counts the number of used nodes.
+* Replaced static CACHESTATS by non-static cachestats.enabled, which is adaptable by user.
+* Removed shutdown hook from JFactory.
+* Changed Cache statistics from int to long.
+* Added opAccess statistic to cache statistics.
 
 ## [1.0.1] - 2020-03-17
 * Updated SCM URL for proper Maven Central metadata.