diff --git a/package.json b/package.json
index de05707e42663a57a02c0e982f3f4487d4bd5425..23fb5964aa84368b250701bcc5be051b0dac55fb 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
   "name": "verona-modules-aspect",
   "config": {
-    "player_version": "1.28.0",
-    "editor_version": "1.35.0",
+    "player_version": "1.28.0-beta",
+    "editor_version": "1.35.0-beta",
     "unit_definition_version": "3.8.0"
   },
   "scripts": {
diff --git a/projects/player/modules/verona/models/verona.ts b/projects/player/modules/verona/models/verona.ts
index 69d9cae24a13df32a48772cecc9c56460be235ed..0b704ad15b414269f226a1eed541eeb252bbbb2f 100644
--- a/projects/player/modules/verona/models/verona.ts
+++ b/projects/player/modules/verona/models/verona.ts
@@ -87,37 +87,15 @@ export interface VopContinueCommand {
   sessionId: string;
 }
 
-export interface VopReadyNotification {
+export interface VopReadyNotification extends VopMetaData {
   type: 'vopReadyNotification';
-  metadata: VopMetaData;
 }
 
 export interface VopMetaData {
-  $schema: string,
-  id: string;
-  type: string;
-  version: string;
-  specVersion: string;
-  name: {
-    lang: string;
-    value: string;
-  }[];
-  description: {
-    lang: string;
-    value: string;
-  }[];
-  maintainer: {
-    name: Record<string, string>[];
-    email: string;
-    url: string;
-  }
-  code: {
-    repositoryType: string;
-    licenseType: string;
-    licenseUrl: string;
-    repositoryUrl: string;
-  }
-  notSupportedFeatures: string[];
+  apiVersion: string;
+  notSupportedApiFeatures?: string;
+  supportedUnitDefinitionTypes?: string;
+  supportedUnitStateDataTypes?: string;
 }
 
 export interface VopStateChangedNotification {
diff --git a/projects/player/modules/verona/services/verona-post.service.spec.ts b/projects/player/modules/verona/services/verona-post.service.spec.ts
index 0ae796e1a0f08075902a6674ccafcd11e716c2e8..64488e4556557107b30d46ca467be87d2121d5d3 100644
--- a/projects/player/modules/verona/services/verona-post.service.spec.ts
+++ b/projects/player/modules/verona/services/verona-post.service.spec.ts
@@ -1,10 +1,10 @@
 import { TestBed } from '@angular/core/testing';
+import { VeronaPostService } from './verona-post.service';
 import { fromEvent } from 'rxjs';
 import {
   VopReadyNotification, VopStateChangedNotification, VopUnitNavigationRequestedNotification,
   VopWindowFocusChangedNotification
 } from 'player/modules/verona/models/verona';
-import { VeronaPostService } from './verona-post.service';
 
 describe('VeronaPostService', () => {
   let service: VeronaPostService;
@@ -24,7 +24,7 @@ describe('VeronaPostService', () => {
     const expectedStateChangedNotification: VopStateChangedNotification = {
       type: 'vopStateChangedNotification',
       sessionId: 'test',
-      timeStamp: Date.now()
+      timeStamp:  Date.now()
     };
     const eventSubscription = fromEvent(window.parent, 'message')
       .subscribe(event => {
@@ -39,45 +39,9 @@ describe('VeronaPostService', () => {
   });
 
   it('should post a VopReadyNotification', done => {
-    const metadata = {
-      $schema: 'https://raw.githubusercontent.com/verona-interfaces/metadata/master/verona-module-metadata.json',
-      name: [
-        {
-          lang: 'de',
-          value: 'IQB-Player (Aspect)'
-        }
-      ],
-      description: [
-        {
-          lang: 'de',
-          value: 'Kann in Verbindung mit dem IQB-Editor (Aspect) im IQB-Studio oder im IQB-Testcenter genutzt werden.'
-        }
-      ],
-      notSupportedFeatures: [],
-      maintainer: {
-        name: [
-          {
-            lang: 'de',
-            value: 'IQB - Institut zur Qualitätsentwicklung im Bildungswesen'
-          }
-        ],
-        url: 'https://www.iqb.hu-berlin.de',
-        email: 'iqb-tbadev@hu-berlin.de'
-      },
-      code: {
-        repositoryType: 'git',
-        licenseType: 'MIT',
-        licenseUrl: 'https://opensource.org/licenses/MIT',
-        repositoryUrl: 'https://github.com/iqb-berlin/verona-modules-aspect'
-      },
-      type: 'player',
-      id: 'iqb-player-aspect',
-      version: 'version-placeholder',
-      specVersion: '4.0'
-    };
     const expectedReadyNotification: VopReadyNotification = {
       type: 'vopReadyNotification',
-      metadata
+      apiVersion: 'test'
     };
     const eventSubscription = fromEvent(window.parent, 'message')
       .subscribe(event => {
@@ -85,8 +49,8 @@ describe('VeronaPostService', () => {
           .toEqual(expectedReadyNotification);
         eventSubscription.unsubscribe();
         done();
-      });
-    service.sendVopReadyNotification(metadata);
+      } );
+    service.sendVopReadyNotification({ apiVersion: 'test' });
   });
 
   it('should post a VopUnitNavigationRequestedNotification', done => {
@@ -101,10 +65,11 @@ describe('VeronaPostService', () => {
           .toEqual(expectedUnitNavigationRequestedNotification);
         eventSubscription.unsubscribe();
         done();
-      });
+      } );
     service.sendVopUnitNavigationRequestedNotification('next');
   });
 
+
   it('should post a VopUnitNavigationRequestedNotification', done => {
     const expectedWindowFocusChangedNotification: VopWindowFocusChangedNotification = {
       type: 'vopWindowFocusChangedNotification',
@@ -119,7 +84,7 @@ describe('VeronaPostService', () => {
         expect(Object.prototype.hasOwnProperty.call(data, 'timeStamp')).toBeTruthy();
         eventSubscription.unsubscribe();
         done();
-      });
+      } );
     service.sendVopWindowFocusChangedNotification(true);
   });
 });
diff --git a/projects/player/modules/verona/services/verona-post.service.ts b/projects/player/modules/verona/services/verona-post.service.ts
index 2a39aa27a3dc8588e95169969975e157e6e6ddd7..81ab085b8d492e6c2f4fc4a6afdc4128ba31caab 100644
--- a/projects/player/modules/verona/services/verona-post.service.ts
+++ b/projects/player/modules/verona/services/verona-post.service.ts
@@ -77,7 +77,7 @@ export class VeronaPostService {
       LogService.debug('player: sendVopReadyNotification', playerMetadata);
       this.send({
         type: 'vopReadyNotification',
-        metadata: playerMetadata
+        ...playerMetadata
       });
     } else {
       LogService.warn('player: no playerMetadata defined');
diff --git a/projects/player/src/html_wrapper/index.html b/projects/player/src/html_wrapper/index.html
index 8f5e5a98590b409474fb7b3a42c757fefdd0d775..7a095b5b529c564d96dafd89e758900ba494baac 100644
--- a/projects/player/src/html_wrapper/index.html
+++ b/projects/player/src/html_wrapper/index.html
@@ -3,41 +3,44 @@
 <head>
   <meta charset="UTF-8">
   <title>Verona Player Aspect</title>
-  <script type="application/ld+json" id="meta_data">
+  <meta name="application-name" content="iqb-player-aspect"
+        data-version="0.1.0"
+        data-repository-url="https://github.com/iqb-berlin/verona-modules-apect"
+        data-api-version="3.0.0"
+        data-not-supported-api-features=""
+        data-supported-unit-definition-types="iqb-aspect-definition@1.0.0"
+        data-supported-unit-state-data-types="iqb-standard@1.0"
+        data-supported-browsers='{"Firefox": 69, "Chrome": 72, "Edge": 79}'
+  />
+
+  <script type="application/ld+json" id="meta_data" >
     {
-      "name": [
-        {
-          "lang": "de",
-          "value": "IQB-Player (Aspect)"
-        }
-      ],
-      "description": [
-        {
-          "lang": "de",
-          "value": "Kann in Verbindung mit dem IQB-Editor (Aspect) im IQB-Studio oder im IQB-Testcenter genutzt werden."
-        }
-      ],
-      "notSupportedFeatures": [],
+      "@context": "https://w3id.org/iqb/verona-modules",
+      "@type": "player",
+      "@id": "iqb-player-aspect",
+      "name": {
+        "de": "IQB-Player (Aspect)",
+        "en": "IQB player (Aspect)"
+      },
       "maintainer": {
-        "name": [
-          {
-            "lang": "de",
-            "value": "IQB - Institut zur Qualitätsentwicklung im Bildungswesen"
-          }
-        ],
+        "name": {
+          "de": "IQB - Institut zur Qualitätsentwicklung im Bildungswesen",
+          "en": "IQB - Institute for Educational Quality Improvement"
+        },
         "url": "https://www.iqb.hu-berlin.de",
         "email": "iqb-tbadev@hu-berlin.de"
       },
-      "code": {
-        "repositoryType": "git",
-        "licenseType": "MIT",
-        "licenseUrl": "https://opensource.org/licenses/MIT",
-        "repositoryUrl": "https://github.com/iqb-berlin/verona-modules-aspect"
+      "description": {
+        "de": "TODO",
+        "en": "TODO"
       },
-      "type": "player",
-      "id": "iqb-player-aspect",
       "version": "version-placeholder",
-      "specVersion": "4.0"
+      "apiVersion": "3.0.0",
+      "repository": {
+        "type": "git",
+        "url": "https://github.com/iqb-berlin/verona-modules-apect"
+      },
+      "notSupportedFeatures": []
     }
   </script>
   <link rel="stylesheet" href="player.css">
diff --git a/projects/player/src/index.html b/projects/player/src/index.html
index 1632fb8fa9f2f1bace0fa70f7f605d1e4cb5fb9a..69983918670e0aa6e41e519d064fa362ced3f7f0 100644
--- a/projects/player/src/index.html
+++ b/projects/player/src/index.html
@@ -6,19 +6,14 @@
   <script id="meta_data" type="application/ld+json">
     {
       "$schema": "https://raw.githubusercontent.com/verona-interfaces/metadata/master/verona-module-metadata.json",
-      "name": [
-        {
-          "lang": "de",
-          "value": "IQB-Player (Aspect)"
-        }
-      ],
-      "description": [
-        {
-          "lang": "de",
-          "value": "Kann in Verbindung mit dem IQB-Editor (Aspect) im IQB-Studio oder im IQB-Testcenter genutzt werden."
-        }
-      ],
-      "notSupportedFeatures": [],
+      "type": "player",
+      "id": "verona-player-aspect",
+      "version": "placeholder",
+      "specVersion": "4.0.0",
+      "name": [{
+        "lang": "de",
+        "value": "Verona-Player (Aspect)"
+      }],
       "maintainer": {
         "name": [
           {
@@ -29,16 +24,16 @@
         "url": "https://www.iqb.hu-berlin.de",
         "email": "iqb-tbadev@hu-berlin.de"
       },
-      "code": {
-        "repositoryType": "git",
-        "licenseType": "MIT",
-        "licenseUrl": "https://opensource.org/licenses/MIT",
-        "repositoryUrl": "https://github.com/iqb-berlin/verona-modules-aspect"
-      },
-      "type": "player",
-      "id": "iqb-player-aspect",
-      "version": "version-placeholder",
-      "specVersion": "4.0"
+      "description": [
+        {
+          "lang": "de",
+          "value": "TODO"
+        }
+      ],
+      "repository": {
+        "type": "git",
+        "url": "https://github.com/iqb-berlin/verona-modules-apect"
+      }
     }
   </script>
   <base href="/">