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

@@ -1,14 +1,22 @@
 # Changelog
 
 The following changes have been made to the library over the years. Pleae add an entry to this file as part of your pull requests.
 
+#### Unreleased changes
+
+#### Version 2.4.0
+
+- Add `additionalData` to response from `listRecurringDetails` recurring payment SOAP endpoint.
+- Updates to the development & test setup for this gem.
+
 #### Version 2.3.0
 
-- Add `shopper_statement` option to `Adyen::APP`, allowing to generate Billets with custom payment instructions.
+- Add support for merchant-specific endpoints.
+- Add `shopper_statement` option to `Adyen::HPP`, allowing to generate Billets with custom payment instructions.
 - Make sure the unique index created by the notification model generator includes `merchant_account_code`
-- Make refusal_reson availble as a response field for failed requests.
-- Updates to the testing in frastructure
+- Make `refusal_resaon` availble as a response field for failed requests.
+- Updates to the testing infrastructure
 
 #### Version 2.2.0
 
 - Add `Adyen::HPP` to integrate with Adyen's Hosted Payment Pages. `Adyen::HPP` supports the new HMAC-256 signing mechanism. `Adyen::Form` should be considered deprecated and will be removed from a future release.