CHANGES.md in twilio-ruby-5.39.3 vs CHANGES.md in twilio-ruby-5.40.0

@@ -1,8 +1,31 @@
 twilio-ruby changelog
 =====================
 
+[2020-08-19] Version 5.40.0
+---------------------------
+**Library - Chore**
+- [PR #526](https://github.com/twilio/twilio-ruby/pull/526): update GitHub branch references to use HEAD. Thanks to [@thinkingserious](https://github.com/thinkingserious)!
+
+**Conversations**
+- Allow Identity addition to Participants
+
+**Events**
+- Sinks API Get all Sinks
+
+**Proxy**
+- Clarified usage of FailOnParticipantConflict param as experimental
+- Add FailOnParticipantConflict param to Proxy Session create and Proxy Participant create
+
+**Supersim**
+- Add fleet, network, and isoCountryCode to the UsageRecords resource
+- Change sort order of UsageRecords from ascending to descending with respect to start time field, records are now returned newest to oldest
+
+**Wireless**
+- Removed `Start` and `End` parameters from the Data Sessions list endpoint. **(breaking change)**
+
+
 [2020-08-05] Version 5.39.3
 ---------------------------
 **Messaging**
 - Add rejection reason support to WhatsApp API
 - Removed status parameter for create and update in WhatsApp Templates API
@@ -502,10 +525,10 @@
 [2019-10-30] Version 5.29.0
 ---------------------------
 **Library**
 - [PR #481](https://github.com/twilio/twilio-ruby/pull/481): added request validation for urls with and without ports. Thanks to [@eshanholtz](https://github.com/eshanholtz)!
 - [PR #480](https://github.com/twilio/twilio-ruby/pull/480): Update resources after sorting. Thanks to [@childish-sambino](https://github.com/childish-sambino)!
-- [PR #479](https://github.com/twilio/twilio-ruby/pull/479): Auto-deploy via Travis CI upon tagged commit to master. Thanks to [@thinkingserious](https://github.com/thinkingserious)!
+- [PR #479](https://github.com/twilio/twilio-ruby/pull/479): Auto-deploy via Travis CI upon tagged commit to main. Thanks to [@thinkingserious](https://github.com/thinkingserious)!
 
 **Api**
 - Add new usage categories to the public api `sms-messages-carrierfees` and `mms-messages-carrierfees`
 
 **Conversations**