diff --git a/changelog.mdx b/changelog.mdx
index 718a882a2..f6506f009 100644
--- a/changelog.mdx
+++ b/changelog.mdx
@@ -7,6 +7,12 @@ 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="X API v2">
+  ### `post_id` qualifier for `like.create` on X Activity API
+
+  We added a `post_id` [filter qualifier](/x-api/activity/introduction#filter-qualifiers) to `like.create` events on the [X Activity API](/x-api/activity/introduction). Set `filter.qualifiers.post_id` on a subscription to receive `like.create` events only for likes on a specific Post, so you can track engagement on individual Posts without filtering the full user-level like stream on your side.
+</Update>
+
 <Update label="Sep 15, 2026" description="X Ads API">
   ### Lead Generation API