diff --git a/docs/release-notes/change-log.md b/docs/release-notes/change-log.md
index 334d8992d..173b48a88 100644
--- a/docs/release-notes/change-log.md
+++ b/docs/release-notes/change-log.md
@@ -12,6 +12,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ## Unreleased
 
 * Pick up docs from the README.md or README in the same directory as the manifest, when top-level package.doc is empty
+* Tier2 service now supports a maximum concurrent requests limit. Default set to 0 (unlimited). 
 
 ## v1.3.7