CHANGELOG.md in rack-logstasher-1.1.0 vs CHANGELOG.md in rack-logstasher-2.0.0

@@ -1,4 +1,9 @@
+# 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).
+
 # 1.1.0
 
 - Require Ruby 2.7 and greater
 
 # 1.0.2