Update CHANGELOG.md

Author: crodriguezvega

CHANGELOG.md

@@ -34,6 +34,20 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 # Changelog
 
+## [Unreleased]
+
+### Dependencies
+
+### API Breaking
+
+### State Machine Breaking
+
+### Improvements
+
+### Features
+
+### Bug Fixes
+
 ## [v8.0.0](https://github.com/cosmos/ibc-go/releases/tag/v8.0.0) - 2023-11-10
 
 ### Dependencies