diff --git a/.github/workflows/codeception.yml b/.github/workflows/codeception.yml
index e840f1c..d2ae9e4 100644
--- a/.github/workflows/codeception.yml
+++ b/.github/workflows/codeception.yml
@@ -29,7 +29,7 @@ jobs:
                 include:
                     - { php-version: 8.1, database: "mariadb:10.11", pimcore_version: "", dependencies: highest, experimental: false, require_admin_bundle: true }
                     - { php-version: 8.2, database: "mariadb:10.11", pimcore_version: "", dependencies: highest, experimental: false, require_admin_bundle: true }
-                    - { php-version: 8.3, database: "mariadb:10.11", pimcore_version: "11.x-dev as 11.9.99", dependencies: highest, experimental: true, require_admin_bundle: true }
+                    - { php-version: 8.3, database: "mariadb:10.11", pimcore_version: "11.x-dev", dependencies: highest, experimental: true, require_admin_bundle: true }
         services:
             mariadb:
                 image: "${{ matrix.database }}"
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index e86e9d5..c645ed1 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -22,7 +22,7 @@ jobs:
                 include:
                     - { php-version: "8.1", dependencies: "highest", pimcore_version: "", phpstan_args: "", experimental: false, require_admin_bundle: true }
                     - { php-version: "8.2", dependencies: "highest", pimcore_version: "", phpstan_args: "", experimental: false, require_admin_bundle: true }
-                    - { php-version: "8.3", dependencies: "highest", pimcore_version: "11.x-dev as 11.9.99", phpstan_args: "", experimental: true, require_admin_bundle: true }
+                    - { php-version: "8.3", dependencies: "highest", pimcore_version: "11.x-dev", phpstan_args: "", experimental: true, require_admin_bundle: true }
         steps:
             - name: "Checkout code"
               uses: "actions/checkout@v2"
diff --git a/README.md b/README.md
index e0960c1..5fb7f90 100644
--- a/README.md
+++ b/README.md
@@ -24,3 +24,4 @@ This bundle provides an editor for Pimcore to manage custom views and perspectiv
 ## Documentation Overview
 - [Installation & Configuration](./doc/01_Installation.md)
 - [Customize Menu Entry List](./doc/02_Customize_Menu_Entry_List.md)
+- [Upgrade Notes](./doc/03_Upgrade.md)
diff --git a/composer.json b/composer.json
index 3e0a3f6..805d999 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
   "minimum-stability": "dev",
   "require": {
     "pimcore/compatibility-bridge-v10": "^1.0",
-    "pimcore/admin-ui-classic-bundle": "^1.6",
+    "pimcore/admin-ui-classic-bundle": "^1.0",
     "pimcore/pimcore": "^11.2",
     "symfony/http-foundation": "^6.3"
   },
@@ -26,9 +26,6 @@
     "codeception/phpunit-wrapper": "^9",
     "codeception/module-asserts": "^2"
   },
-  "suggest": {
-    "pimcore/admin-ui-classic-bundle": "Required for Pimcore 11"
-  },
   "autoload": {
     "psr-4": {
       "Pimcore\\Bundle\\PerspectiveEditorBundle\\": "src/"
diff --git a/doc/01_Installation.md b/doc/01_Installation.md
index f2ec6f5..bb93454 100644
--- a/doc/01_Installation.md
+++ b/doc/01_Installation.md
@@ -1,49 +1,11 @@
 # Installation
 ## Bundle Installation
-### For Pimcore >= 10.5 & \<= 10.6
-To install Pimcore Perspective Editor for Pimcore 10.5 or higher, follow the three steps below:
-
-1. Install the required dependencies:
-```bash
-composer require pimcore/perspective-editor
-```
-
-2. Make sure the bundle is enabled in the `config/bundles.php` file. The following lines should be added:
-
-```php
-use Pimcore\Bundle\PerspectiveEditorBundle\PimcorePerspectiveEditorBundle;
-// ...
-
-return [
-    // ...
-    PimcorePerspectiveEditorBundle::class => ['all' => true],
-    // ...
-];
-```
-
-3. Install the bundle:
-
-```bash
-bin/console pimcore:bundle:install PimcorePerspectiveEditorBundle
-```
-
-### For Pimcore 11
-
 You need to follow the steps mentioned above and additionally run the following command:
 
 ```bash
 composer require pimcore/admin-ui-classic-bundle
 ```
 
-### For Older Versions
-To install the Perspective Editor bundle for older versions of Pimcore, please run the following commands instead:
-
-```bash
-composer require pimcore/perspective-editor
-bin/console pimcore:bundle:enable PimcorePerspectiveEditorBundle
-bin/console pimcore:bundle:install PimcorePerspectiveEditorBundle
-```
-
 Installation routine just adds an additional permission to `users_permission_definitions` table. 
 
 Also, make sure, that `customviews.php` and `perspectives.php` files are writeable for php.
@@ -53,7 +15,6 @@ They can be located at Pimcore default locations for config files:
 If they don't exist, they are created at `PIMCORE_CONFIGURATION_DIRECTORY`.
  
 
-
 ## Configuration
 
 To make the bundle work, just make sure, users have the necessary permissions. 
diff --git a/src/Resources/public/js/pimcore/perspective/events.js b/src/Resources/public/js/pimcore/perspective/events.js
index e37e2d2..3ffb18d 100644
--- a/src/Resources/public/js/pimcore/perspective/events.js
+++ b/src/Resources/public/js/pimcore/perspective/events.js
@@ -38,16 +38,4 @@ pimcore.events.postCreatePerspectiveEditorElementTreeTypeStore = "pimcore.perspe
 /**
  * fired after ElementTreeIcons Array was  initialized
  */
-pimcore.events.addPerspectiveEditorElementTreeIcon = 'pimcore.perspectiveEditor.elementTreeIcon.add';
-
-
-
-
-//TODO: delete once support for Pimcore 10.6 is dropped
-if(typeof addEventListenerCompatibilityForPlugins === "function") {
-    let eventMappings = [];
-    eventMappings["onPerspectiveEditorLoadPermissions"] = pimcore.events.onPerspectiveEditorLoadPermissions;
-    eventMappings["onPerspectiveEditorLoadStructureForPermissions"] = pimcore.events.onPerspectiveEditorLoadStructureForPermissions;
-    addEventListenerCompatibilityForPlugins(eventMappings);
-    console.warn("Deprecation: addEventListenerCompatibilityForPlugins will be not supported in Pimcore 11.");
-}
+pimcore.events.addPerspectiveEditorElementTreeIcon = 'pimcore.perspectiveEditor.elementTreeIcon.add';
\ No newline at end of file