CHANGELOG.md in veritrans-2.3.0 vs CHANGELOG.md in veritrans-2.4.0

@@ -1,4 +1,17 @@
+### Version 2.4.0 (date 22 October 2021)
+* Update dependency, revamp implementation by removing non relevant features & adding new features
+* Implement Gopay tokenization
+* Implement API subscription
+* Add function Idempotency Key, override notification, append Notification
+* Make new unit test using minitest
+* Create example core api and snap using Sinatra framework
+* API client methods will now raise `MidtransError` when getting unexpected API response. You may need to update your error handling.
+
+### Version 2.3.1 (date 9 March 2021)
+
+* Change URI.escape to ERB::Util.url_encode (support ruby 3.0)
+
 ### Version 2.3.0 (date 1 April 2019)
 
 * Add refund, deny, and test_token methods (Thank to @christianmkuss)
 * Remove logging of server key