diff --git a/experimental/CHANGELOG.md b/experimental/CHANGELOG.md
index ad7e5593911..15265473323 100644
--- a/experimental/CHANGELOG.md
+++ b/experimental/CHANGELOG.md
@@ -22,6 +22,8 @@ All notable changes to experimental packages in this project will be documented
 
 ### :rocket: (Enhancement)
 
+* feat(api-events): added data field to the Event interface [4575](https://github.com/open-telemetry/opentelemetry-js/pull/4575)
+
 ### :bug: (Bug Fix)
 
 * fix(exporter-*-otlp-*): use parseHeaders() to ensure header-values are not 'undefined' #4540