diff --git a/x/tx/CHANGELOG.md b/x/tx/CHANGELOG.md
index 9dac9e325c67..da689199910d 100644
--- a/x/tx/CHANGELOG.md
+++ b/x/tx/CHANGELOG.md
@@ -33,6 +33,10 @@ Since v0.13.0, x/tx follows Cosmos SDK semver: https://github.com/cosmos/cosmos-
 
 ## [Unreleased]
 
+### Improvements
+
+* [#21850](https://github.com/cosmos/cosmos-sdk/pull/21850) Support bytes field as signer.
+
 ## [v0.13.5](https://github.com/cosmos/cosmos-sdk/releases/tag/x/tx/v0.13.5) - 2024-09-18
 
 ### Improvements