diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c60443016184..ed21119f5ac61 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -52,7 +52,11 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Bug Fixes
 
 + [\#9965](https://github.com/cosmos/cosmos-sdk/pull/9965) Fixed `simd version` command output to report the right release tag.
-
++ 
+### API Breaking Changes
+* (client/tx) [\#9421](https://github.com/cosmos/cosmos-sdk/pull/9421/) `BuildUnsignedTx`, `BuildSimTx`, `PrintUnsignedStdTx` functions are moved to
+  the Tx Factory as methods.
+  
 ## [v0.43.0](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.43.0) - 2021-08-10
 
 ### Features
@@ -142,7 +146,6 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/capability) [\#9836](https://github.com/cosmos/cosmos-sdk/pull/9836) Removed `InitializeAndSeal(ctx sdk.Context)` and replaced with `Seal()`. App must add x/capability module to the begin blockers which will assure that the x/capability keeper is properly initialized. The x/capability begin blocker must be run before any other module which uses x/capability.
 
 
-
 ### State Machine Breaking
 
 * (x/{bank,distrib,gov,slashing,staking}) [\#8363](https://github.com/cosmos/cosmos-sdk/issues/8363) Store keys have been modified to allow for variable-length addresses.