diff --git a/src/main.ts b/src/main.ts
index 8997222..f0595c2 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -35,8 +35,7 @@ export function diff(
   config: Config = {}
 ): AsyncAPIDiff {
   if (incompatibleDocuments(firstDocument, secondDocument)) {
-    // TODO: decide how to show the errors
-    return 'Incompatible docs';
+    throw new TypeError('Incompatible documents');
   }
 
   const standard = getStandardFromVersion(firstDocument);
diff --git a/src/standards/v3.ts b/src/standards/v3.ts
index a84def5..ba1d155 100644
--- a/src/standards/v3.ts
+++ b/src/standards/v3.ts
@@ -1,7 +1,5 @@
 import { breaking, nonBreaking, unclassified } from '../constants';
 
-// TODO: check the new spec changes
-
 /**
  * The standard object for AsyncAPI v3
  *
@@ -13,4 +11,31 @@ export const standard = {
     remove: breaking,
     edit: breaking,
   },
+  '/id': {
+    add: nonBreaking,
+    remove: breaking,
+    edit: breaking,
+  },
+  '/info': {
+    add: nonBreaking,
+    remove: breaking,
+    edit: nonBreaking,
+  },
+  '/info/title': {},
+  '/info/version': {},
+  '/info/description': {},
+  '/info/termsOfService': {},
+  '/info/contact': {},
+  '/info/license': {},
+  '/info/tags': {},
+  '/info/externalDocs': {},
+  '/servers': {},
+  '/defaultContentType': {},
+  '/channels': {},
+  '/operations': {},
+  '/components': {
+    add: nonBreaking,
+    remove: nonBreaking,
+    edit: nonBreaking,
+  }
 };