CHANGELOG.md in mesh-medical-subject-headings-2.2.1 vs CHANGELOG.md in mesh-medical-subject-headings-2.3.0

@@ -1,4 +1,7 @@
+#2.3.0 / 2014-09-30
+* [FEATURE] Significant performance improvements to entity recognition in text
+
 #2.2.1 / 2014-07-18
 * [FEATURE] Headings now have forward references
 
 #2.2.0 / 2014-07-10
 * [FEATURE] Headings now have structured_entries which include semantic and lexical information