HISTORY.txt in xkeys-2.1.0 vs HISTORY.txt in xkeys-2.2.0

@@ -1,4 +1,9 @@
[phone] Version 2.2.0
+
+	Added support for the #xkeys_on_final callback when setting the
+	value in the final (leaf) node.
+
 2014-05-06 Version 2.1.0
 
 	Now works with underlying types that support #[] but not #fetch.
 
 2014-04-16 Version 2.0.1