CHANGES.md in twilio-ruby-5.3.0 vs CHANGES.md in twilio-ruby-5.3.1

@@ -1,7 +1,16 @@
 twilio-ruby changelog
 =====================
 
+[2017-10-06] Version 5.3.1
+---------------------------
+**Preview**
+- Add `acc_security` (authy-phone-verification) initial api-definitions
+
+**Taskrouter**
+- [bi] Less verbose naming of cumulative and real time statistics
+
+
 [2017-09-29] Version 5.3.0
 ---------------------------
 **Library**
 - Remove left over files from legacy 4.x library