web-platform-dx · ddbeck · Nov 19, 2025 · Nov 12, 2025 · Nov 12, 2025 · Nov 12, 2025
diff --git a/features/custom-media-queries.yml b/features/custom-media-queries.yml
@@ -2,8 +2,5 @@ name: Custom media queries
 description: The `@custom-media` CSS at-rule names a media query, which you can reuse in multiple `@media` rules.
 spec: https://drafts.csswg.org/mediaqueries-5/#custom-mq
 group: media-queries
-# Not in BCD yet, but expecting something like:
-# - css.at-rules.custom-media
-# - api.CSSCustomMediaRule
-# - api.CSSCustomMediaRule.name
-# - api.CSSCustomMediaRule.query
+compat_features:
+  - css.at-rules.custom-media
diff --git a/features/custom-media-queries.yml.dist b/features/custom-media-queries.yml.dist
@@ -4,3 +4,5 @@
 status:
   baseline: false
   support: {}
+compat_features:
+  - css.at-rules.custom-media
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -40,7 +40,7 @@
   "devDependencies": {
     "@eslint/js": "^9.39.1",
     "@js-temporal/polyfill": "^0.5.1",
-    "@mdn/browser-compat-data": "7.1.20",
+    "@mdn/browser-compat-data": "7.1.21",
     "@octokit/rest": "^22.0.1",
     "@types/caniuse-lite": "^1.0.4",
     "@types/node": "^20.19.25",