CHANGELOG.md in rack-logstasher-2.0.0 vs CHANGELOG.md in rack-logstasher-2.1.0

@@ -1,4 +1,8 @@
+## 2.1.0
+
+* Drop support for Ruby 2.7.
+
 # 2.0.0
 
 - Add support for Rack 3
 - **BREAKING** Only allows lower case header keys due to [underlying Rack spec change at 3.0.0beta1](https://github.com/rack/rack/blob/main/CHANGELOG.md#300beta1---2022-08-08).