fix: changelog

CHANGELOG.md

@@ -34,6 +34,23 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 # Changelog
 
+## [Unreleased]
+
+### Dependencies
+
+### API Breaking
+
+### State Machine Breaking
+
+### Improvements
+
+* (core/02-client) [\#1570](https://github.com/cosmos/ibc-go/pull/1570) Emitting an event when handling an upgrade client proposal.
+
+### Features
+
+### Bug Fixes
+
+
 ## [v2.1.1](https://github.com/cosmos/ibc-go/releases/tag/v2.1.1) - 2022-04-16
 
 ### Dependencies
@@ -46,8 +63,6 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (modules/core/keeper) [\#1284](https://github.com/cosmos/ibc-go/pull/1284) Add sanity check for the keepers passed into `ibckeeper.NewKeeper`. `ibckeeper.NewKeeper` now panics if any of the keepers passed in is empty.
 * (transfer) [\#1414](https://github.com/cosmos/ibc-go/pull/1414) Emitting Sender address from `fungible_token_packet` events in `OnRecvPacket` and `OnAcknowledgementPacket`.
 * (modules/core/04-channel) [\#1464](https://github.com/cosmos/ibc-go/pull/1464) Emit a channel close event when an ordered channel is closed.
-* (core/02-client) [\#1570](https://github.com/cosmos/ibc-go/pull/1570) Emitting an event when handling an upgrade client proposal.
-
 
 ### Bug Fixes