CHANGES.md in twilio-ruby-3.11.6 vs CHANGES.md in twilio-ruby-3.12.0

@@ -1,7 +1,13 @@
 twilio-ruby changelog
 =====================
 
+Version 3.12.0
+- Add Rack middleware for Twilio request-signature validation
+- Upgrade dependencies and clean up project files
+- Documentation fixes
+- Add `text` alias for `to_xml` method on TwiML generator objects
+
 Version 3.11.6
 
 Released July 25, 2014
 
 - Add #to_xml to TwiML Responses.