diff --git a/Documentation/Introduction/Index.rst b/Documentation/Introduction/Index.rst
index a27c018..ecc4260 100644
--- a/Documentation/Introduction/Index.rst
+++ b/Documentation/Introduction/Index.rst
@@ -8,6 +8,12 @@ Introduction
 ============
 
 
+!! No longer supported !!
+=========================
+
+Due to the plans (since TYPO3 12) to use `lit` as frontend JS framework this extension will no longer be maintained and supported. And probably deleted some day in the future.
+
+
 What does it do?
 ================
 
diff --git a/Jenkinsfile b/Jenkinsfile
deleted file mode 100644
index 1532319..0000000
--- a/Jenkinsfile
+++ /dev/null
@@ -1,50 +0,0 @@
-pipeline {
-    agent any
-    stages {
-        stage('Building t3x-vuejs') {
-            when { buildingTag() }
-            environment {
-                TER_ACCESS_TOKEN = credentials('typo3-zotornit-ter-access-token')
-                DOCKER_REPOSITORY = credentials('robo-jenkins-docker-publish')
-            }
-            steps {
-                echo "Building t3x-vuejs:$TAG_NAME"
-                script {
-                    sh 'docker login -u $DOCKER_REPOSITORY_USR -p $DOCKER_REPOSITORY_PSW registry9.de:5000/typo3-ter-upload:latest'
-                    sh 'docker pull registry9.de:5000/typo3-ter-upload:latest'
-                    sh 'docker run -i --rm -v $PWD:/extension -e TER_ACCESS_TOKEN=$TER_ACCESS_TOKEN -e TAG_NAME=$TAG_NAME registry9.de:5000/typo3-ter-upload:latest'
-
-                }
-            }
-        }
-    }
-
-    environment {
-        EMAIL_TO = "tp@zotorn.de"
-    }
-    post {
-//             always {
-//             }
-        success {
-            emailext (body: 'Check console output at $BUILD_URL to view the results. \n\n ${CHANGES} \n\n -------------------------------------------------- \n${BUILD_LOG, escapeHtml=false}',
-                      to: "${EMAIL_TO}",
-                      subject: 'Build success: $PROJECT_NAME - #$BUILD_NUMBER')
-
-        }
-        failure {
-            emailext (body: 'Check console output at $BUILD_URL to view the results. \n\n ${CHANGES} \n\n -------------------------------------------------- \n${BUILD_LOG, escapeHtml=false}',
-                      to: "${EMAIL_TO}",
-                      subject: 'Build FAILURE: $PROJECT_NAME - #$BUILD_NUMBER')
-        }
-        unstable {
-            emailext (body: 'Check console output at $BUILD_URL to view the results. \n\n ${CHANGES} \n\n -------------------------------------------------- \n${BUILD_LOG, escapeHtml=false}',
-                      to: "${EMAIL_TO}",
-                      subject: 'Jenkins build UNSTABLE: $PROJECT_NAME - #$BUILD_NUMBER')
-        }
-        changed {
-            emailext (body: 'Check console output at $BUILD_URL to view the results. \n\n ${CHANGES} \n\n -------------------------------------------------- \n${BUILD_LOG, escapeHtml=false}',
-                      to: "${EMAIL_TO}",
-                      subject: 'Jenkins build CHANGED back to normal: $PROJECT_NAME - #$BUILD_NUMBER')
-        }
-    }
-}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0cac260
--- /dev/null
+++ b/README.md
@@ -0,0 +1,10 @@
+# TYPO3 vuejs Extension
+
+## !! NO LONGER SUPPORTED !!
+
+Due to the plans (since TYPO3 12) to use `lit` as frontend JS framework this extension will no longer be maintained and supported. 
+And probably deleted some day in the future.
+
+More on `lit`:
+
+https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/Backend/JavaScript/Templating/Index.html
diff --git a/ext_emconf.php b/ext_emconf.php
index 67e2d8b..925ff77 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -10,7 +10,7 @@
     'state' => 'stable',
     'uploadfolder' => false,
     'clearCacheOnLoad' => false,
-    'version' => '1.1.0',
+    'version' => '1.1.1',
     'constraints' =>
         array(
             'depends' =>