diff --git a/CHANGELOG.md b/CHANGELOG.md
index db41a1eda64ad..d36ebcd683823 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,8 @@ Every module contains its own CHANGELOG.md. Please refer to the module you are i
 
 ### Improvements
 
+* (internal) [#21412](https://github.com/cosmos/cosmos-sdk/pull/21412) Using unsafe.String and unsafe.SliceData.
+
 ### Bug Fixes
 
 * (baseapp) [#21256](https://github.com/cosmos/cosmos-sdk/pull/21256) Halt height will not commit the block indicated, meaning that if halt-height is set to 10, only blocks until 9 (included) will be committed. This is to go back to the original behavior before a change was introduced in v0.50.0.