Improve CHANGES.md

Author: magoorden

CHANGES.md

@@ -4,12 +4,13 @@ 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.
+* Added the collection of platform-independent 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 and configurable per BDD factory instance.
+* Removed global JVM shutdown hook, that prints cache statistics to `stdout`, from `JFactory`.
+* Cache statistics are now measured using `longs` rather than `ints` to reduce integer overflow issues.
+* Added `opAccess` statistic to cache statistics.
+* Added functionality to reset statistics.
 
 ## [1.0.1] - 2020-03-17
 * Updated SCM URL for proper Maven Central metadata.