Update changes log.

CHANGES

@@ -14,9 +14,9 @@ Changes in 2.3.0
  * Major internal project layout restructuring to allow shared use of common code
    between the Java 6/7 and Java 8 versions.
 
- * Fixed bug where two pools in the same VM, using drivers with differing JDBC
-   support levels, would fail unless both pools were using connectionTestQuery.
-   This was due to inappropriate use of static.
+ * Fixed bug where two pools in the same VM (and ClassLoading domain), using drivers
+   with differing JDBC support levels, would fail unless both pools were using
+   connectionTestQuery.
 
 Changes in 2.2.5