udpate for release

CHANGELOG.md

@@ -1,5 +1,18 @@
 # CHANGELOG
 
+## 2.0.0-beta1
+
+Major break from alpha1 (and the previous 1.x series) in that the generated
+class names are significantly renamed.
+
+In particular, the mapper class no longer has a "Mapper" suffix on it. This
+helps it to act as a "base prefix" for IDE completion, which is now greatly
+enhanced by the automatic addition of @method docblocks on the generated classes
+to indicate type-specific returns.
+
+If you have generated classes with the alpha1 release, you will need to re-
+generate them and change your class references.
+
 ## 2.0.0-alpha1
 
 First alpha release.