diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e0daa0f2df..ac8ca57e6ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@
 
 ### Libraries
 
+#### `dart:convert`
+
+- **Breaking change** [#52801][]:
+  - Changed return types of `utf8.encode()` and `Utf8Codec.encode()` from
+    `List<int>` to `Uint8List`.
+
+[#52801]: https://dartbug.com/52801
+
 #### `dart:async`
 
 - **Breaking change** [#52334][]: