CHANGELOG.md in mailtrap-2.0.0 vs CHANGELOG.md in mailtrap-2.1.0

@@ -1,4 +1,9 @@
+## [2.1.0] - 2024-07-08
+
+- Fixed extraneous headers added by ActionMailer #21
+- Dropped Ruby 2.7 support and added test coverage for Ruby up to 3.3 #22
+
 ## [2.0.0] - 2024-03-20
 
 - Added arguments for `Mailtrap::Client`
   - `bulk` to use Mailtrap bulk sending API
   - `sandbox` to use Mailtrap sandbox API