diff --git a/cardano-api/ChangeLog.md b/cardano-api/ChangeLog.md
index 17a47dd79ea..e1692927444 100644
--- a/cardano-api/ChangeLog.md
+++ b/cardano-api/ChangeLog.md
@@ -27,6 +27,11 @@
 - **Breaking change** - `queryExpr` to return `IO (Either UnsupportedNtcVersionError a)` instead of `IO a`.
   ([PR4788](https://github.com/input-output-hk/cardano-node/pull/4788))
 
+- **Breaking change** - For performance reasons, `evaluateTransactionFee` to take a
+  `Ledger.PParams (ShelleyLedgerEra era)` argument instead of `ProtocolParameters`
+  New type `BundledProtocolParameters` and new functions `bundleProtocolParams` and `unbundleProtocolParams`.
+  ([PR4903](https://github.com/input-output-hk/cardano-node/pull/4903))
+
 ### Bugs
 
 - Allow reading text envelopes from pipes ([PR 4384](https://github.com/input-output-hk/cardano-node/pull/4384))