Update CHANGELOG.md

Author: vstenvik

CHANGELOG.md

@@ -25,12 +25,17 @@ should change the heading of the (upcoming) version to include a major version b
 # @rjsf/utils
 
 - [#4080](https://github.com/rjsf-team/react-jsonschema-form/issues/4080) - BREAKING CHANGE: Removed the `base64` object from the `@rjsf/utils` package. Note that this is a breaking change if you relied on the `base64` object exported by `@rjsf/utils`. Since this change caused [#4080](https://github.com/rjsf-team/react-jsonschema-form/issues/4080), and was only internally used by playground code, we are shipping this change in a patch release.
+- [#4091](https://github.com/rjsf-team/react-jsonschema-form/issues/4091) Added errorSchema to the ArrayFieldTemplateProps type.
 
 ## Dev / docs / playground
 
 - [#4080](https://github.com/rjsf-team/react-jsonschema-form/issues/4080) - Moved the `base64` encoder/decoder object to the Playground package. 
 - Added test configuration and script to the Playground. 
 
+# @rjsf/core
+
+- [#4091](https://github.com/rjsf-team/react-jsonschema-form/issues/4091) Added errorSchema to ArrayFieldTemplate props.
+
 
 # 5.17.0