/resources/shared_criterion.proto 

--- v19/resources/shared_criterion.proto    2025-05-30 15:35:56.000000000 +0000
+++ v20/resources/shared_criterion.proto    2025-05-30 15:36:03.000000000 +0000
@@ -92,11 +92,15 @@
         8 [(google.api.field_behavior) = IMMUTABLE];

     // Immutable. Mobile application.
-    google.ads.googleads.v19.common.MobileApplicationInfo mobile_application = 9
+    google.ads.googleads.v20.common.MobileApplicationInfo mobile_application = 9
         [(google.api.field_behavior) = IMMUTABLE];

     // Immutable. Brand.
-    google.ads.googleads.v19.common.BrandInfo brand = 12
+    google.ads.googleads.v20.common.BrandInfo brand = 12
+        [(google.api.field_behavior) = IMMUTABLE];
+
+    // Immutable. Webpage.
+    google.ads.googleads.v20.common.WebpageInfo webpage = 13
         [(google.api.field_behavior) = IMMUTABLE];
   }
 }