Update changelog

Author: cpsievert

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * The `.get_latest_stream_result()` method on `ui.MarkdownStream()` was deprecated in favor of the new `.latest_stream` property. Call `.result()` on the property to get the latest result, `.status` to check the status, and `.cancel()` to cancel the stream.
 
+### Bug fixes
+
+* Fixed an issue where the `.update_user_input()` method on `ui.Chat()` isn't working in shinylive.  (#1891)
+
 ## [1.3.0] - 2025-03-03
 
 ### New features