diff --git a/features/webvtt-regions.yml b/features/webvtt-regions.yml
index 6540160b95d..b869ffc218c 100644
--- a/features/webvtt-regions.yml
+++ b/features/webvtt-regions.yml
@@ -1,3 +1,15 @@
 name: WebVTT regions
 description: WebVTT regions set the areas of the video where captions or subtitles should be rendered, such as placing roll-up captions used for live captions.
 spec: https://w3c.github.io/webvtt/#regions
+compat_features:
+  - api.VTTCue.region
+  - api.VTTRegion
+  - api.VTTRegion.VTTRegion
+  - api.VTTRegion.id
+  - api.VTTRegion.lines
+  - api.VTTRegion.regionAnchorX
+  - api.VTTRegion.regionAnchorY
+  - api.VTTRegion.scroll
+  - api.VTTRegion.viewportAnchorX
+  - api.VTTRegion.viewportAnchorY
+  - api.VTTRegion.width
diff --git a/features/webvtt-regions.yml.dist b/features/webvtt-regions.yml.dist
index 9868f3f2f57..eac0f3282d4 100644
--- a/features/webvtt-regions.yml.dist
+++ b/features/webvtt-regions.yml.dist
@@ -6,9 +6,15 @@ status:
   support:
     firefox: "59"
     firefox_android: "59"
-    safari: "7"
-    safari_ios: "7"
+    safari: "14.1"
+    safari_ios: "14.5"
 compat_features:
+  # baseline: false
+  # support:
+  #   firefox: "59"
+  #   firefox_android: "59"
+  #   safari: "7"
+  #   safari_ios: "7"
   - api.VTTRegion
   - api.VTTRegion.VTTRegion
   - api.VTTRegion.id
@@ -18,3 +24,20 @@ compat_features:
   - api.VTTRegion.viewportAnchorX
   - api.VTTRegion.viewportAnchorY
   - api.VTTRegion.width
+
+  # baseline: false
+  # support:
+  #   firefox: "59"
+  #   firefox_android: "59"
+  #   safari: "12.1"
+  #   safari_ios: "12.2"
+  - api.VTTRegion.lines
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   firefox: "59"
+  #   firefox_android: "59"
+  #   safari: "14.1"
+  #   safari_ios: "14.5"
+  - api.VTTCue.region