diff --git a/changelog.mdx b/changelog.mdx
index 718a882a2..256167c33 100644
--- a/changelog.mdx
+++ b/changelog.mdx
@@ -7,6 +7,18 @@ keywords: ["changelog", "API updates", "release notes", "what's new", "API chang
 
 To subscribe to updates, please [**“Turn on notifications”**](https://help.x.com/en/managing-your-account/notifications-on-mobile-devices#:~:text=In%20the%20top%20menu,%20you,you%20would%20like%20to%20receive) for [**@API**](https://x.com/api). You can also follow this changelog in your feed reader via the [**RSS feed**](https://docs.x.com/changelog/rss.xml).
 
+<Update label="Sep 15, 2026" description="Livestream API">
+  ### Broadcast chat moderator endpoints
+
+  You can now manage chat moderators for your broadcasts through the Livestream API. Moderators are scoped to the authenticated user and take effect across every broadcast that user hosts.
+
+  - [GET /2/broadcasts/chat/moderators](/livestream-api/chat/list-moderators) lists the authenticated user's chat moderators
+  - [POST /2/broadcasts/chat/moderators](/livestream-api/chat/add-moderator) adds a user as a chat moderator
+  - [DELETE /2/broadcasts/chat/moderators/{id}](/livestream-api/chat/remove-moderator) removes a chat moderator
+
+  Each user can have up to 20 moderators; adding a 21st returns `400 Bad Request`. All three endpoints support OAuth 2.0 user context and OAuth 1.0a.
+</Update>
+
 <Update label="Sep 15, 2026" description="X Ads API">
   ### Lead Generation API