diff --git a/en/changelog.yml b/en/changelog.yml
index 1f7a9581..727a8917 100644
--- a/en/changelog.yml
+++ b/en/changelog.yml
@@ -202,3 +202,9 @@ v1.37.0:
       New addon: "project page download button", which allows you to download projects directly from the project page, without having to open the editor first. Go to Scratch Addons settings to enable it.
 
       Other new addons added this update are "larger Save Now button", and "replace backpack bar with button".
+v1.38.0:
+  Highlights:
+    Description: |
+      This is an experimental update that we're releasing to a portion of our user base. It contains some behind-the-scenes changes to support the new extension architecture required by browsers (Manifest V3). If you encounter any issues or unexpected behavior, please send feedback. There is also a button to send feedback in the settings page.
+
+      This update doesn't introduce any new features, but stay tuned for upcoming updates.