diff --git a/experimental/CHANGELOG.md b/experimental/CHANGELOG.md
index 4935d9b83b..93f6df7828 100644
--- a/experimental/CHANGELOG.md
+++ b/experimental/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to experimental packages in this project will be documented
 
 ## Unreleased
 
+### :books: (Refine Doc)
+
+* docs(sdk-metrics): add example of exponential histogram metric [#3855](https://github.com/open-telemetry/opentelemetry-js/pull/3855) @JamieDanielson
+
 ### :boom: Breaking Change
 
 * fix(exporter-logs-otlp-grpc): change OTLPLogsExporter to OTLPLogExporter [#3819](https://github.com/open-telemetry/opentelemetry-js/pull/3819) @fuaiyi