diff --git a/Controller/BreadcrumbController.php b/Controller/BreadcrumbController.php
index f1a7bc9..741f0a6 100644
--- a/Controller/BreadcrumbController.php
+++ b/Controller/BreadcrumbController.php
@@ -32,6 +32,8 @@ class BreadcrumbController extends EmitterController
      */
     public function breadcrumbAction(Request $request): Response
     {
+        @trigger_error('BreadcrumbController::breadcrumbAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(BreadcrumbMenuEvent::class)) {
             return new Response();
         }
diff --git a/Controller/NavbarController.php b/Controller/NavbarController.php
index b0a73eb..96882d9 100644
--- a/Controller/NavbarController.php
+++ b/Controller/NavbarController.php
@@ -21,24 +21,14 @@
 class NavbarController extends EmitterController
 {
     /**
-     * @var int|null
+     * @var ContextHelper
      */
-    private $maxNotifications;
-    /**
-     * @var int|null
-     */
-    private $maxMessages;
-    /**
-     * @var int|null
-     */
-    private $maxTasks;
+    private $helper;
 
     public function __construct(EventDispatcherInterface $dispatcher, ContextHelper $helper)
     {
         parent::__construct($dispatcher);
-        $this->maxNotifications = $helper->getOption('max_navbar_notifications');
-        $this->maxMessages = $helper->getOption('max_navbar_messages');
-        $this->maxTasks = $helper->getOption('max_navbar_tasks');
+        $this->helper = $helper;
     }
 
     /**
@@ -47,12 +37,14 @@ public function __construct(EventDispatcherInterface $dispatcher, ContextHelper
      */
     public function notificationsAction($max = null): Response
     {
+        @trigger_error('NavbarController::notificationsAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(NotificationListEvent::class)) {
             return new Response();
         }
 
         if (null === $max) {
-            $max = (int) $this->maxNotifications;
+            $max = (int) $this->helper->getOption('max_navbar_notifications');
         }
 
         /** @var NotificationListEvent $listEvent */
@@ -73,12 +65,14 @@ public function notificationsAction($max = null): Response
      */
     public function messagesAction($max = null): Response
     {
+        @trigger_error('NavbarController::messagesAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(MessageListEvent::class)) {
             return new Response();
         }
 
         if (null === $max) {
-            $max = (int) $this->maxMessages;
+            $max = (int) $this->helper->getOption('max_navbar_messages');
         }
 
         /** @var MessageListEvent $listEvent */
@@ -99,12 +93,14 @@ public function messagesAction($max = null): Response
      */
     public function tasksAction($max = null): Response
     {
+        @trigger_error('NavbarController::tasksAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(TaskListEvent::class)) {
             return new Response();
         }
 
         if (null === $max) {
-            $max = (int) $this->maxTasks;
+            $max = (int) $this->helper->getOption('max_navbar_tasks');
         }
 
         /** @var TaskListEvent $listEvent */
@@ -124,6 +120,8 @@ public function tasksAction($max = null): Response
      */
     public function userAction(): Response
     {
+        @trigger_error('NavbarController::userAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(NavbarUserEvent::class)) {
             return new Response();
         }
diff --git a/Controller/SidebarController.php b/Controller/SidebarController.php
index c2099df..aa45c4c 100644
--- a/Controller/SidebarController.php
+++ b/Controller/SidebarController.php
@@ -15,13 +15,12 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 
-class SidebarController extends EmitterController
+final class SidebarController extends EmitterController
 {
-    /**
-     * @return Response
-     */
     public function userPanelAction(): Response
     {
+        @trigger_error('SidebarController::userPanelAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(SidebarUserEvent::class)) {
             return new Response();
         }
@@ -37,20 +36,17 @@ public function userPanelAction(): Response
         );
     }
 
-    /**
-     * @return Response
-     */
     public function searchFormAction(): Response
     {
+        @trigger_error('SidebarController::searchFormAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         return $this->render('@AdminLTE/Sidebar/search-form.html.twig', []);
     }
 
-    /**
-     * @param Request $request
-     * @return Response
-     */
     public function menuAction(Request $request): Response
     {
+        @trigger_error('SidebarController::menuAction() is deprecated and will be removed with 4.0', E_USER_DEPRECATED);
+
         if (!$this->hasListener(SidebarMenuEvent::class)) {
             return new Response();
         }
diff --git a/Event/MenuEvent.php b/Event/MenuEvent.php
index 1a39b3d..7e2077c 100644
--- a/Event/MenuEvent.php
+++ b/Event/MenuEvent.php
@@ -83,7 +83,7 @@ public function removeItem($item): MenuEvent
      */
     public function getRootItem($id)
     {
-        return isset($this->menuRootItems[$id]) ? $this->menuRootItems[$id] : null;
+        return $this->menuRootItems[$id] ?? null;
     }
 
     /**
diff --git a/Event/MessageListEvent.php b/Event/MessageListEvent.php
index a2c547c..2835bc6 100644
--- a/Event/MessageListEvent.php
+++ b/Event/MessageListEvent.php
@@ -10,11 +10,12 @@
 namespace KevinPapst\AdminLTEBundle\Event;
 
 use KevinPapst\AdminLTEBundle\Model\MessageInterface;
+use KevinPapst\AdminLTEBundle\Repository\MessageRepositoryInterface;
 
 /**
  * The MessageListEvent collects all MessageInterface objects that should be rendered in the messages section.
  */
-class MessageListEvent extends ThemeEvent
+class MessageListEvent extends ThemeEvent implements MessageRepositoryInterface
 {
     /**
      * Stores the list of messages
diff --git a/Event/NotificationListEvent.php b/Event/NotificationListEvent.php
index 063d0cc..9197b3f 100644
--- a/Event/NotificationListEvent.php
+++ b/Event/NotificationListEvent.php
@@ -10,11 +10,12 @@
 namespace KevinPapst\AdminLTEBundle\Event;
 
 use KevinPapst\AdminLTEBundle\Model\NotificationInterface;
+use KevinPapst\AdminLTEBundle\Repository\NotificationRepositoryInterface;
 
 /**
  * The NotificationListEvent collects all NotificationInterface objects that should be rendered in the notification section.
  */
-class NotificationListEvent extends ThemeEvent
+class NotificationListEvent extends ThemeEvent implements NotificationRepositoryInterface
 {
     /**
      * @var array
diff --git a/Event/ShowUserEvent.php b/Event/ShowUserEvent.php
index 1443ad2..5cf059b 100644
--- a/Event/ShowUserEvent.php
+++ b/Event/ShowUserEvent.php
@@ -10,12 +10,13 @@
 namespace KevinPapst\AdminLTEBundle\Event;
 
 use KevinPapst\AdminLTEBundle\Model\NavBarUserLink;
+use KevinPapst\AdminLTEBundle\Model\UserDetailsInterface;
 use KevinPapst\AdminLTEBundle\Model\UserInterface;
 
 /**
  * Collect the UserInterface object that should be rendered in the user section.
  */
-abstract class ShowUserEvent extends ThemeEvent
+abstract class ShowUserEvent extends ThemeEvent implements UserDetailsInterface
 {
     /**
      * @var UserInterface
diff --git a/Event/TaskListEvent.php b/Event/TaskListEvent.php
index 1eca42d..c9c7e6d 100644
--- a/Event/TaskListEvent.php
+++ b/Event/TaskListEvent.php
@@ -10,11 +10,12 @@
 namespace KevinPapst\AdminLTEBundle\Event;
 
 use KevinPapst\AdminLTEBundle\Model\TaskInterface;
+use KevinPapst\AdminLTEBundle\Repository\TaskRepositoryInterface;
 
 /**
  * The TaskListEvent collects all TaskInterface objects that should be rendered in the tasks section.
  */
-class TaskListEvent extends ThemeEvent
+class TaskListEvent extends ThemeEvent implements TaskRepositoryInterface
 {
     /**
      * @var TaskInterface[]
@@ -32,7 +33,7 @@ class TaskListEvent extends ThemeEvent
     protected $total = 0;
 
     /**
-     * @param int $max Maximun number of tasks displayed in panel
+     * @param int|null $max Maximum number of tasks displayed in panel
      */
     public function __construct($max = null)
     {
@@ -50,7 +51,7 @@ public function getMax()
     }
 
     /**
-     * @return array
+     * @return TaskInterface[]
      */
     public function getTasks()
     {
diff --git a/Model/NotificationModel.php b/Model/NotificationModel.php
index 51061ec..9a07a2c 100644
--- a/Model/NotificationModel.php
+++ b/Model/NotificationModel.php
@@ -14,27 +14,24 @@
 class NotificationModel implements NotificationInterface
 {
     /**
-     * @return string
+     * @var string
      */
     protected $type = Constants::TYPE_INFO;
-
     /**
-     * @return string
+     * @var string
      */
     protected $message;
-
     /**
-     * @return string
+     * @var string
      */
     protected $icon;
-
     /**
      * @var string
      */
     protected $id;
 
     /**
-     * @param string $message
+     * @param string|null $message
      * @param string $type
      * @param string $icon
      */
diff --git a/Model/UserDetailsInterface.php b/Model/UserDetailsInterface.php
new file mode 100644
index 0000000..3d5c123
--- /dev/null
+++ b/Model/UserDetailsInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Model;
+
+interface UserDetailsInterface
+{
+    /**
+     * @return NavBarUserLink[]
+     */
+    public function getLinks(): array;
+
+    public function getUser(): ?UserInterface;
+
+    public function isShowProfileLink(): bool;
+
+    public function isShowLogoutLink(): bool;
+}
diff --git a/README.md b/README.md
index 64f9852..cba8421 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,8 @@ This repository contains an upgraded version of the AvanzuAdminThemeBundle, brin
 
 **Compatibility:**
 
+Version 3.x should be compatible with Symfony 5, [please leave your feedback](https://github.com/kevinpapst/AdminLTEBundle/issues/144).
+
 - Version 3.x is only compatible with Symfony >= 4.3
 - Version 2.x of this bundle is compatible with Symfony < 4.3
 
diff --git a/Repository/MessageRepositoryInterface.php b/Repository/MessageRepositoryInterface.php
new file mode 100644
index 0000000..be3dd27
--- /dev/null
+++ b/Repository/MessageRepositoryInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Repository;
+
+use KevinPapst\AdminLTEBundle\Model\MessageInterface;
+
+interface MessageRepositoryInterface
+{
+    /**
+     * @return int
+     */
+    public function getTotal();
+
+    /**
+     * @return iterable<MessageInterface>
+     */
+    public function getMessages();
+}
diff --git a/Repository/NotificationRepositoryInterface.php b/Repository/NotificationRepositoryInterface.php
new file mode 100644
index 0000000..029dddf
--- /dev/null
+++ b/Repository/NotificationRepositoryInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Repository;
+
+use KevinPapst\AdminLTEBundle\Model\NotificationInterface;
+
+interface NotificationRepositoryInterface
+{
+    /**
+     * @return int
+     */
+    public function getTotal();
+
+    /**
+     * @return iterable<NotificationInterface>
+     */
+    public function getNotifications();
+}
diff --git a/Repository/TaskRepositoryInterface.php b/Repository/TaskRepositoryInterface.php
new file mode 100644
index 0000000..24867f5
--- /dev/null
+++ b/Repository/TaskRepositoryInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Repository;
+
+use KevinPapst\AdminLTEBundle\Model\TaskInterface;
+
+interface TaskRepositoryInterface
+{
+    /**
+     * @return int
+     */
+    public function getTotal();
+
+    /**
+     * @return iterable<TaskInterface>
+     */
+    public function getTasks();
+}
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 5697339..c08b009 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -5,17 +5,29 @@ services:
         tags: ['controller.service_arguments']
         autowire: true
 
-    KevinPapst\AdminLTEBundle\Twig\AdminExtension:
-        class: KevinPapst\AdminLTEBundle\Twig\AdminExtension
+    KevinPapst\AdminLTEBundle\Twig\RuntimeExtension:
+        class: KevinPapst\AdminLTEBundle\Twig\RuntimeExtension
         arguments:
             - '@admin_lte_theme.context_helper'
             - '%admin_lte_theme.routes%'
+        tags:
+            - { name: twig.runtime }
+
+    KevinPapst\AdminLTEBundle\Twig\EventsExtension:
+        class: KevinPapst\AdminLTEBundle\Twig\EventsExtension
+        arguments:
+            - '@event_dispatcher'
+            - '@admin_lte_theme.context_helper'
+        tags:
+            - { name: twig.runtime }
+
+    KevinPapst\AdminLTEBundle\Twig\AdminExtension:
+        class: KevinPapst\AdminLTEBundle\Twig\AdminExtension
         tags:
             - { name: twig.extension }
 
     admin_lte_theme.context_helper:
         class: KevinPapst\AdminLTEBundle\Helper\ContextHelper
-        alias:
         arguments:
             - '%admin_lte_theme.options%'
 
diff --git a/Resources/views/Breadcrumb/breadcrumb.html.twig b/Resources/views/Breadcrumb/breadcrumb.html.twig
index 12a0e88..0521e79 100644
--- a/Resources/views/Breadcrumb/breadcrumb.html.twig
+++ b/Resources/views/Breadcrumb/breadcrumb.html.twig
@@ -1,3 +1,7 @@
+{% if active is not defined or adminlte_direct_include is defined %}
+    {% set active = adminlte_breadcrumbs(app.request) %}
+{% endif %}
+{% if active is defined and active is not null %}
 <ol class="breadcrumb">
     <li>
         <a href="{{ path('adminlte_welcome'|route_alias) }}">
@@ -10,4 +14,5 @@
             <li><a href="{{ item.route is empty ? '#' : '/' in item.route ? item.route : path(item.route|route_alias, item.routeArgs) }}">{{ item.label|trans }}</a></li>
         {% endfor %}
     {% endif %}
-</ol>
\ No newline at end of file
+</ol>
+{% endif %}
\ No newline at end of file
diff --git a/Resources/views/Navbar/messages.html.twig b/Resources/views/Navbar/messages.html.twig
index c32d17e..0deec0d 100644
--- a/Resources/views/Navbar/messages.html.twig
+++ b/Resources/views/Navbar/messages.html.twig
@@ -1,11 +1,19 @@
 {% import "@AdminLTE/Macros/default.html.twig" as macro %}
+{% if messages is not defined or adminlte_direct_include is defined %}
+    {% set adminlte_messages = adminlte_messages() %}
+    {% if adminlte_messages is not null %}
+        {% set messages = adminlte_messages.messages %}
+        {% set total = adminlte_messages.total %}
+    {% endif %}
+{% endif %}
+{% if messages is defined and messages is not null %}
 <li class="dropdown messages-menu">
     <a href="#" class="dropdown-toggle" data-toggle="dropdown">
         <i class="far fa-envelope"></i>
         <span class="label label-success">{{ total }}</span>
     </a>
     <ul class="dropdown-menu">
-        <li class="header">{{ 'You have %count% messages'|trans({'%count%':total}, 'AdminLTEBundle') }}</li>
+        <li class="header">{{ 'You have %count% messages'|trans({'%count%': total}, 'AdminLTEBundle') }}</li>
         <li>
             <ul class="menu">
                 {% for msg in messages %}
@@ -27,3 +35,4 @@
         <li class="footer"><a href="{{ path('adminlte_messages'|route_alias) }}">{{'View all'|trans({}, 'AdminLTEBundle')}}</a></li>
     </ul>
 </li>
+{% endif %}
diff --git a/Resources/views/Navbar/notifications.html.twig b/Resources/views/Navbar/notifications.html.twig
index dd0e97b..a81520c 100644
--- a/Resources/views/Navbar/notifications.html.twig
+++ b/Resources/views/Navbar/notifications.html.twig
@@ -1,10 +1,18 @@
+{% if notifications is not defined or adminlte_direct_include is defined %}
+    {% set adminlte_notifications = adminlte_notifications()  %}
+    {% if adminlte_notifications is not null %}
+        {% set notifications = adminlte_notifications.notifications  %}
+        {% set total = adminlte_notifications.total  %}
+    {% endif %}
+{% endif %}
+{% if notifications is defined and notifications is not null %}
 <li class="dropdown notifications-menu">
     <a href="#" class="dropdown-toggle" data-toggle="dropdown">
         <i class="far fa-bell"></i>
         <span class="label label-warning">{{ total }}</span>
     </a>
     <ul class="dropdown-menu">
-        <li class="header">{{ 'You have %count% notifications'|trans({'%count%':total}, 'AdminLTEBundle') }}</li>
+        <li class="header">{{ 'You have %count% notifications'|trans({'%count%': total}, 'AdminLTEBundle') }}</li>
         <li>
             <ul class="menu">
                 {% for notice in notifications %}
@@ -19,3 +27,4 @@
         <li class="footer"><a href="{{ path('adminlte_notifications'|route_alias) }}">{{'View all'|trans({}, 'AdminLTEBundle')}}</a></li>
     </ul>
 </li>
+{% endif %}
diff --git a/Resources/views/Navbar/tasks.html.twig b/Resources/views/Navbar/tasks.html.twig
index 1b78c8d..a89728e 100644
--- a/Resources/views/Navbar/tasks.html.twig
+++ b/Resources/views/Navbar/tasks.html.twig
@@ -1,10 +1,18 @@
+{% if tasks is not defined or adminlte_direct_include is defined %}
+    {% set adminlte_tasks = adminlte_tasks()  %}
+    {% if adminlte_tasks is not null %}
+        {% set tasks = adminlte_tasks.tasks  %}
+        {% set total = adminlte_tasks.total  %}
+    {% endif %}
+{% endif %}
+{% if tasks is defined and tasks is not null %}
 <li class="dropdown tasks-menu">
     <a href="#" class="dropdown-toggle" data-toggle="dropdown">
         <i class="far fa-flag"></i>
         <span class="label label-danger">{{ total }}</span>
     </a>
     <ul class="dropdown-menu">
-        <li class="header">{{ 'You have %count% tasks' |trans({'%count%':total}, 'AdminLTEBundle') }}</li>
+        <li class="header">{{ 'You have %count% tasks' |trans({'%count%': total}, 'AdminLTEBundle') }}</li>
         <li>
             <ul class="menu">
                 {% for task in tasks %}
@@ -33,3 +41,4 @@
         </li>
     </ul>
 </li>
+{% endif %}
diff --git a/Resources/views/Navbar/user.html.twig b/Resources/views/Navbar/user.html.twig
index 577fac9..b583c65 100644
--- a/Resources/views/Navbar/user.html.twig
+++ b/Resources/views/Navbar/user.html.twig
@@ -1,7 +1,14 @@
-{# @var links \KevinPapst\AdminLTEBundle\Model\NavBarUserLink[] #}
-{# @var showProfileLink bool #}
-{# @var showLogoutLink bool #}
 {% import "@AdminLTE/Macros/default.html.twig" as macro %}
+{% if user is not defined or adminlte_direct_include is defined %}
+    {% set adminlte_userdetails = adminlte_user() %}
+    {% if adminlte_userdetails is not null %}
+        {% set user = adminlte_userdetails.user %}
+        {% set links = adminlte_userdetails.links %}
+        {% set showProfileLink = adminlte_userdetails.showProfileLink %}
+        {% set showLogoutLink = adminlte_userdetails.showLogoutLink %}
+    {% endif %}
+{% endif %}
+{% if user is defined and user is not null %}
 <li class="dropdown user user-menu">
     <a href="#" class="dropdown-toggle" data-toggle="dropdown">
         {{ macro.avatar(user.avatar, user.username, 'user-image') }}
@@ -47,3 +54,4 @@
         {% endif %}
     </ul>
 </li>
+{% endif %}
diff --git a/Resources/views/Sidebar/menu.html.twig b/Resources/views/Sidebar/menu.html.twig
index 76bed8d..6b6b332 100644
--- a/Resources/views/Sidebar/menu.html.twig
+++ b/Resources/views/Sidebar/menu.html.twig
@@ -1,7 +1,11 @@
-<!-- sidebar menu: : style can be found in sidebar.less -->
 {% from "@AdminLTE/Macros/menu.html.twig" import menu_item %}
+{% if menu is not defined or adminlte_direct_include is defined %}
+    {% set menu = adminlte_menu(app.request) %}
+{% endif %}
+{% if menu is defined and menu is not null %}
 <ul class="sidebar-menu" data-widget="tree">
     {% for item in menu %}
         {{ menu_item(item) }}
     {% endfor %}
 </ul>
+{% endif %}
diff --git a/Resources/views/Sidebar/search-form.html.twig b/Resources/views/Sidebar/search-form.html.twig
index 8e34503..3326beb 100644
--- a/Resources/views/Sidebar/search-form.html.twig
+++ b/Resources/views/Sidebar/search-form.html.twig
@@ -1,4 +1,3 @@
-<!-- search form -->
 <form action="#" method="get" class="sidebar-form">
     <div class="input-group">
         <input type="text" name="q" class="form-control" placeholder="{{ 'Search'|trans({}, 'AdminLTEBundle') }}..."/>
@@ -7,4 +6,3 @@
         </span>
     </div>
 </form>
-<!-- /.search form -->
diff --git a/Resources/views/Sidebar/user-panel.html.twig b/Resources/views/Sidebar/user-panel.html.twig
index d294913..b6daa01 100644
--- a/Resources/views/Sidebar/user-panel.html.twig
+++ b/Resources/views/Sidebar/user-panel.html.twig
@@ -1,5 +1,8 @@
 {% import "@AdminLTE/Macros/default.html.twig" as macro %}
-<!-- Sidebar user panel -->
+{% if user is not defined or adminlte_direct_include is defined %}
+    {% set user = adminlte_sidebar_user() %}
+{% endif %}
+{% if user is defined and user is not null %}
 <div class="user-panel">
     <div class="pull-left image">
     {{ macro.avatar(user.avatar, user.username)  }}
@@ -10,3 +13,4 @@
         <a href="#"><i class="fas fa-circle text-success"></i> {{ 'Online'|trans({}, 'AdminLTEBundle') }}</a>
     </div>
 </div>
+{% endif %}
diff --git a/Resources/views/layout/default-layout.html.twig b/Resources/views/layout/default-layout.html.twig
index 9e29909..2b7a269 100644
--- a/Resources/views/layout/default-layout.html.twig
+++ b/Resources/views/layout/default-layout.html.twig
@@ -50,16 +50,16 @@ fixed, layout-boxed, layout-top-nav, sidebar-collapse, sidebar-mini
                 <ul class="nav navbar-nav">
                     {% block navbar_start %}{% endblock %}
                     {% block navbar_messages %}
-                        {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\NavbarController::messagesAction')) }}
+                        {% include '@AdminLTE/Navbar/messages.html.twig' with {'adminlte_direct_include': true} %}
                     {% endblock %}
                     {% block navbar_notifications %}
-                        {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\NavbarController::notificationsAction')) }}
+                        {% include '@AdminLTE/Navbar/notifications.html.twig' with {'adminlte_direct_include': true} %}
                     {% endblock %}
                     {% block navbar_tasks %}
-                        {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\NavbarController::tasksAction')) }}
+                        {% include '@AdminLTE/Navbar/tasks.html.twig' with {'adminlte_direct_include': true} %}
                     {% endblock %}
                     {% block navbar_user %}
-                        {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\NavbarController::userAction')) }}
+                        {% include '@AdminLTE/Navbar/user.html.twig' with {'adminlte_direct_include': true} %}
                     {% endblock %}
                     {% block navbar_end %}{% endblock %}
                     {% block navbar_control_sidebar_toggle %}
@@ -78,19 +78,19 @@ fixed, layout-boxed, layout-top-nav, sidebar-collapse, sidebar-mini
         <section class="sidebar">
             {% block sidebar_user %}
                 {% if app.user is not null and is_granted('IS_AUTHENTICATED_FULLY') %}
-                    {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\SidebarController::userPanelAction')) }}
+                    {% include '@AdminLTE/Sidebar/user-panel.html.twig' with {'adminlte_direct_include': true} %}
                 {% endif %}
             {% endblock %}
 
             {% block sidebar_search %}
-                {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\SidebarController::searchFormAction')) }}
+                {% include '@AdminLTE/Sidebar/search-form.html.twig' with {'adminlte_direct_include': true} %}
             {% endblock %}
 
             {% block sidebar_nav %}
                 {% if admin_lte_context.knp_menu.enable %}
                     {% include '@AdminLTE/Sidebar/knp-menu.html.twig' %}
                 {% else %}
-                    {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\SidebarController::menuAction', {'request':app.request})) }}
+                    {% include '@AdminLTE/Sidebar/menu.html.twig' with {'adminlte_direct_include': true} %}
                 {% endif %}
             {% endblock %}
         </section>
@@ -107,7 +107,7 @@ fixed, layout-boxed, layout-top-nav, sidebar-collapse, sidebar-mini
                 {% if admin_lte_context.knp_menu.enable %}
                     {% include '@AdminLTE/Breadcrumb/knp-breadcrumb.html.twig' %}
                 {% else %}
-                    {{ render(controller('KevinPapst\\AdminLTEBundle\\Controller\\BreadcrumbController::breadcrumbAction', {'request':app.request})) }}
+                    {% include '@AdminLTE/Breadcrumb/breadcrumb.html.twig' with {'adminlte_direct_include': true} %}
                 {% endif %}
             {% endblock %}
         </section>
diff --git a/Resources/views/layout/form-theme-security.html.twig b/Resources/views/layout/form-theme-security.html.twig
index 91e203c..e09054f 100644
--- a/Resources/views/layout/form-theme-security.html.twig
+++ b/Resources/views/layout/form-theme-security.html.twig
@@ -1,7 +1,9 @@
 {% extends '@AdminLTE/layout/form-theme-base.html.twig' %}
 
 {%- block form_widget_simple -%}
-    {% set attr = attr|merge({'placeholder': label|trans({}, translation_domain)}) %}
+    {% if label is defined and label is not null and label is not same as (false) %}
+        {% set attr = attr|merge({'placeholder': label|trans({}, translation_domain)}) %}
+    {% endif %}
     {% set label = false %}
     {% if not attr.icon is defined %}
         {% set attr = attr|merge({'icon': 'user'}) %}
diff --git a/Tests/Controller/NavbarControllerTest.php b/Tests/Controller/NavbarControllerTest.php
index 3d05900..855d58e 100644
--- a/Tests/Controller/NavbarControllerTest.php
+++ b/Tests/Controller/NavbarControllerTest.php
@@ -37,6 +37,12 @@ protected function getContainerMock()
         return $container;
     }
 
+    /**
+     * @param int $notifications
+     * @param int $messages
+     * @param int $tasks
+     * @return ContextHelper
+     */
     protected function getContextHelper($notifications, $messages, $tasks)
     {
         return new ContextHelper([
diff --git a/Tests/Twig/AdminExtensionTest.php b/Tests/Twig/AdminExtensionTest.php
index f331c47..f90d119 100644
--- a/Tests/Twig/AdminExtensionTest.php
+++ b/Tests/Twig/AdminExtensionTest.php
@@ -9,74 +9,28 @@
 
 namespace KevinPapst\AdminLTEBundle\Tests\Twig;
 
-use KevinPapst\AdminLTEBundle\Helper\Constants;
-use KevinPapst\AdminLTEBundle\Helper\ContextHelper;
 use KevinPapst\AdminLTEBundle\Twig\AdminExtension;
 use PHPUnit\Framework\TestCase;
 
 class AdminExtensionTest extends TestCase
 {
-    /**
-     * @param array $options
-     * @return AdminExtension
-     */
-    protected function getSut(array $options = [])
-    {
-        $contextHelper = new ContextHelper();
-        foreach ($options as $key => $value) {
-            $contextHelper->setOption($key, $value);
-        }
-
-        $routes = [
-            'foo' => 'bar',
-            'hello' => null,
-        ];
-
-        return new AdminExtension($contextHelper, $routes);
-    }
-
     public function testGetFilters()
     {
-        $sut = $this->getSut();
+        $sut = new AdminExtension();
         $this->assertEquals(3, count($sut->getFilters()));
+        $result = array_map(function ($filter) {
+            return $filter->getName();
+        }, $sut->getFilters());
+        $this->assertEquals(['body_class', 'route_alias', 'text_type'], $result);
     }
 
-    public function testGetRouteByAlias()
-    {
-        $sut = $this->getSut();
-        $this->assertEquals('bar', $sut->getRouteByAlias('foo'));
-        $this->assertEquals('hello', $sut->getRouteByAlias('hello'));
-        $this->assertEquals('test1', $sut->getRouteByAlias('test1'));
-    }
-
-    public function testBodyClass()
+    public function testGetFunctions()
     {
-        $sut = $this->getSut([]);
-        $this->assertEquals('test', $sut->bodyClass('test'));
-
-        $sut = $this->getSut(['skin' => 'green']);
-        $this->assertEquals('test green', $sut->bodyClass('test'));
-
-        $sut = $this->getSut([
-            'skin' => 'green',
-            'fixed_layout' => true,
-            'boxed_layout' => true,
-            'collapsed_sidebar' => true,
-            'mini_sidebar' => true,
-        ]);
-        $this->assertEquals('test green fixed layout-boxed sidebar-collapse sidebar-mini', $sut->bodyClass('test'));
-    }
-
-    public function testGetTextType()
-    {
-        $sut = $this->getSut();
-
-        $this->assertEquals('text-', $sut->getTextType(''));
-        $this->assertEquals('text-foo-bar', $sut->getTextType('foo-bar'));
-        $this->assertEquals('text-blub', $sut->getTextType('blub'));
-        $this->assertEquals('text-aqua', $sut->getTextType(Constants::TYPE_INFO));
-        $this->assertEquals('text-green', $sut->getTextType(Constants::TYPE_SUCCESS));
-        $this->assertEquals('text-yellow', $sut->getTextType(Constants::TYPE_WARNING));
-        $this->assertEquals('text-red', $sut->getTextType(Constants::TYPE_ERROR));
+        $sut = new AdminExtension();
+        $this->assertEquals(7, count($sut->getFunctions()));
+        $result = array_map(function ($function) {
+            return $function->getName();
+        }, $sut->getFunctions());
+        $this->assertEquals(['adminlte_menu', 'adminlte_sidebar_user', 'adminlte_breadcrumbs', 'adminlte_notifications', 'adminlte_messages', 'adminlte_tasks', 'adminlte_user'], $result);
     }
 }
diff --git a/Tests/Twig/RuntimeExtensionTest.php b/Tests/Twig/RuntimeExtensionTest.php
new file mode 100644
index 0000000..ccb01bb
--- /dev/null
+++ b/Tests/Twig/RuntimeExtensionTest.php
@@ -0,0 +1,76 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Tests\Twig;
+
+use KevinPapst\AdminLTEBundle\Helper\Constants;
+use KevinPapst\AdminLTEBundle\Helper\ContextHelper;
+use KevinPapst\AdminLTEBundle\Twig\RuntimeExtension;
+use PHPUnit\Framework\TestCase;
+
+class RuntimeExtensionTest extends TestCase
+{
+    /**
+     * @param array $options
+     * @return RuntimeExtension
+     */
+    protected function getSut(array $options = [])
+    {
+        $contextHelper = new ContextHelper();
+        foreach ($options as $key => $value) {
+            $contextHelper->setOption($key, $value);
+        }
+
+        $routes = [
+            'foo' => 'bar',
+            'hello' => null,
+        ];
+
+        return new RuntimeExtension($contextHelper, $routes);
+    }
+
+    public function testGetRouteByAlias()
+    {
+        $sut = $this->getSut();
+        $this->assertEquals('bar', $sut->getRouteByAlias('foo'));
+        $this->assertEquals('hello', $sut->getRouteByAlias('hello'));
+        $this->assertEquals('test1', $sut->getRouteByAlias('test1'));
+    }
+
+    public function testBodyClass()
+    {
+        $sut = $this->getSut([]);
+        $this->assertEquals('test', $sut->bodyClass('test'));
+
+        $sut = $this->getSut(['skin' => 'green']);
+        $this->assertEquals('test green', $sut->bodyClass('test'));
+
+        $sut = $this->getSut([
+            'skin' => 'green',
+            'fixed_layout' => true,
+            'boxed_layout' => true,
+            'collapsed_sidebar' => true,
+            'mini_sidebar' => true,
+        ]);
+        $this->assertEquals('test green fixed layout-boxed sidebar-collapse sidebar-mini', $sut->bodyClass('test'));
+    }
+
+    public function testGetTextType()
+    {
+        $sut = $this->getSut();
+
+        $this->assertEquals('text-', $sut->getTextType(''));
+        $this->assertEquals('text-foo-bar', $sut->getTextType('foo-bar'));
+        $this->assertEquals('text-blub', $sut->getTextType('blub'));
+        $this->assertEquals('text-aqua', $sut->getTextType(Constants::TYPE_INFO));
+        $this->assertEquals('text-green', $sut->getTextType(Constants::TYPE_SUCCESS));
+        $this->assertEquals('text-yellow', $sut->getTextType(Constants::TYPE_WARNING));
+        $this->assertEquals('text-red', $sut->getTextType(Constants::TYPE_ERROR));
+    }
+}
diff --git a/Twig/AdminExtension.php b/Twig/AdminExtension.php
index 7528c21..dced3c0 100644
--- a/Twig/AdminExtension.php
+++ b/Twig/AdminExtension.php
@@ -9,102 +9,34 @@
 
 namespace KevinPapst\AdminLTEBundle\Twig;
 
-use KevinPapst\AdminLTEBundle\Helper\Constants;
-use KevinPapst\AdminLTEBundle\Helper\ContextHelper;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFilter;
+use Twig\TwigFunction;
 
 class AdminExtension extends AbstractExtension
 {
-    /**
-     * @var ContextHelper
-     */
-    protected $context;
-    /**
-     * @var array
-     */
-    private $routes;
-
-    /**
-     * @param ContextHelper $contextHelper
-     * @param array $routes
-     */
-    public function __construct(ContextHelper $contextHelper, array $routes)
-    {
-        $this->context = $contextHelper;
-        $this->routes = $routes;
-    }
-
     /**
      * @return TwigFilter[]
      */
     public function getFilters()
     {
         return [
-            new TwigFilter('body_class', [$this, 'bodyClass']),
-            new TwigFilter('route_alias', [$this, 'getRouteByAlias']),
-            new TwigFilter('text_type', [$this, 'getTextType']),
+            new TwigFilter('body_class', [RuntimeExtension::class, 'bodyClass']),
+            new TwigFilter('route_alias', [RuntimeExtension::class, 'getRouteByAlias']),
+            new TwigFilter('text_type', [RuntimeExtension::class, 'getTextType']),
         ];
     }
 
-    /**
-     * @param string $routeName
-     * @return string
-     */
-    public function getRouteByAlias($routeName)
+    public function getFunctions()
     {
-        return $this->routes[$routeName] ?? $routeName;
-    }
-
-    /**
-     * @param string $type
-     * @return string
-     */
-    public function getTextType($type)
-    {
-        switch ($type) {
-            case Constants::TYPE_INFO:
-                $type = Constants::COLOR_AQUA;
-                break;
-            case Constants::TYPE_WARNING:
-                $type = Constants::COLOR_YELLOW;
-                break;
-            case Constants::TYPE_SUCCESS:
-                $type = Constants::COLOR_GREEN;
-                break;
-            case Constants::TYPE_ERROR:
-                $type = Constants::COLOR_RED;
-                break;
-        }
-
-        return 'text-' . $type;
-    }
-
-    /**
-     * @param string $classes
-     * @return string
-     */
-    public function bodyClass($classes = '')
-    {
-        $classList = [$classes];
-        $options = $this->context->getOptions();
-
-        if (isset($options['skin'])) {
-            $classList[] = $options['skin'];
-        }
-        if (isset($options['fixed_layout']) && true == $options['fixed_layout']) {
-            $classList[] = 'fixed';
-        }
-        if (isset($options['boxed_layout']) && true == $options['boxed_layout']) {
-            $classList[] = 'layout-boxed';
-        }
-        if (isset($options['collapsed_sidebar']) && true == $options['collapsed_sidebar']) {
-            $classList[] = 'sidebar-collapse';
-        }
-        if (isset($options['mini_sidebar']) && true == $options['mini_sidebar']) {
-            $classList[] = 'sidebar-mini';
-        }
-
-        return implode(' ', array_values($classList));
+        return [
+            new TwigFunction('adminlte_menu', [EventsExtension::class, 'getMenu']),
+            new TwigFunction('adminlte_sidebar_user', [EventsExtension::class, 'getSidebarUser']),
+            new TwigFunction('adminlte_breadcrumbs', [EventsExtension::class, 'getBreadcrumbs']),
+            new TwigFunction('adminlte_notifications', [EventsExtension::class, 'getNotifications']),
+            new TwigFunction('adminlte_messages', [EventsExtension::class, 'getMessages']),
+            new TwigFunction('adminlte_tasks', [EventsExtension::class, 'getTasks']),
+            new TwigFunction('adminlte_user', [EventsExtension::class, 'getUserDetails']),
+        ];
     }
 }
diff --git a/Twig/EventsExtension.php b/Twig/EventsExtension.php
new file mode 100644
index 0000000..5277945
--- /dev/null
+++ b/Twig/EventsExtension.php
@@ -0,0 +1,162 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Twig;
+
+use KevinPapst\AdminLTEBundle\Event\BreadcrumbMenuEvent;
+use KevinPapst\AdminLTEBundle\Event\MessageListEvent;
+use KevinPapst\AdminLTEBundle\Event\NavbarUserEvent;
+use KevinPapst\AdminLTEBundle\Event\NotificationListEvent;
+use KevinPapst\AdminLTEBundle\Event\ShowUserEvent;
+use KevinPapst\AdminLTEBundle\Event\SidebarMenuEvent;
+use KevinPapst\AdminLTEBundle\Event\SidebarUserEvent;
+use KevinPapst\AdminLTEBundle\Event\TaskListEvent;
+use KevinPapst\AdminLTEBundle\Helper\ContextHelper;
+use KevinPapst\AdminLTEBundle\Model\MenuItemInterface;
+use KevinPapst\AdminLTEBundle\Model\UserDetailsInterface;
+use KevinPapst\AdminLTEBundle\Model\UserInterface;
+use KevinPapst\AdminLTEBundle\Repository\MessageRepositoryInterface;
+use KevinPapst\AdminLTEBundle\Repository\NotificationRepositoryInterface;
+use KevinPapst\AdminLTEBundle\Repository\TaskRepositoryInterface;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Twig\Extension\RuntimeExtensionInterface;
+
+final class EventsExtension implements RuntimeExtensionInterface
+{
+    /**
+     * @var EventDispatcherInterface
+     */
+    private $eventDispatcher;
+    /**
+     * @var ContextHelper
+     */
+    private $helper;
+
+    public function __construct(EventDispatcherInterface $dispatcher, ContextHelper $helper)
+    {
+        $this->eventDispatcher = $dispatcher;
+        $this->helper = $helper;
+    }
+
+    /**
+     * @param Request $request
+     * @return MenuItemInterface[]
+     */
+    public function getMenu(Request $request): ?array
+    {
+        if (!$this->eventDispatcher->hasListeners(SidebarMenuEvent::class)) {
+            return null;
+        }
+
+        /** @var SidebarMenuEvent $event */
+        $event = $this->eventDispatcher->dispatch(new SidebarMenuEvent($request));
+
+        return $event->getItems();
+    }
+
+    public function getSidebarUser(): ?UserInterface
+    {
+        if (!$this->eventDispatcher->hasListeners(SidebarUserEvent::class)) {
+            return null;
+        }
+
+        /** @var SidebarUserEvent $event */
+        $event = $this->eventDispatcher->dispatch(new SidebarUserEvent());
+
+        return $event->getUser();
+    }
+
+    public function getBreadcrumbs(Request $request): ?array
+    {
+        if (!$this->eventDispatcher->hasListeners(BreadcrumbMenuEvent::class)) {
+            return null;
+        }
+
+        /** @var BreadcrumbMenuEvent $event */
+        $event = $this->eventDispatcher->dispatch(new BreadcrumbMenuEvent($request));
+
+        /** @var MenuItemInterface $active */
+        $active = $event->getActive();
+        $list = [];
+        if (null !== $active) {
+            $list[] = $active;
+            while (null !== ($item = $active->getActiveChild())) {
+                $list[] = $item;
+                $active = $item;
+            }
+        }
+
+        return $list;
+    }
+
+    public function getNotifications(?int $max = null): ?NotificationRepositoryInterface
+    {
+        if (!$this->eventDispatcher->hasListeners(NotificationListEvent::class)) {
+            return null;
+        }
+
+        if (null === $max) {
+            $max = (int) $this->helper->getOption('max_navbar_notifications');
+        }
+
+        /** @var NotificationListEvent $listEvent */
+        $listEvent = $this->eventDispatcher->dispatch(new NotificationListEvent($max));
+
+        return $listEvent;
+    }
+
+    public function getMessages(?int $max = null): ?MessageRepositoryInterface
+    {
+        if (!$this->eventDispatcher->hasListeners(MessageListEvent::class)) {
+            return null;
+        }
+
+        if (null === $max) {
+            $max = (int) $this->helper->getOption('max_navbar_messages');
+        }
+
+        /** @var MessageListEvent $listEvent */
+        $listEvent = $this->eventDispatcher->dispatch(new MessageListEvent($max));
+
+        return $listEvent;
+    }
+
+    public function getTasks(?int $max = null): ?TaskRepositoryInterface
+    {
+        if (!$this->eventDispatcher->hasListeners(TaskListEvent::class)) {
+            return null;
+        }
+
+        if (null === $max) {
+            $max = (int) $this->helper->getOption('max_navbar_tasks');
+        }
+
+        /** @var TaskListEvent $listEvent */
+        $listEvent = $this->eventDispatcher->dispatch(new TaskListEvent($max));
+
+        return $listEvent;
+    }
+
+    public function getUserDetails(): ?UserDetailsInterface
+    {
+        if (!$this->eventDispatcher->hasListeners(NavbarUserEvent::class)) {
+            return null;
+        }
+
+        /** @var ShowUserEvent $userEvent */
+        $userEvent = $this->eventDispatcher->dispatch(new NavbarUserEvent());
+
+        if ($userEvent instanceof ShowUserEvent && null !== $userEvent->getUser()) {
+            return $userEvent;
+        }
+
+        return null;
+    }
+}
diff --git a/Twig/RuntimeExtension.php b/Twig/RuntimeExtension.php
new file mode 100644
index 0000000..5e8ac0a
--- /dev/null
+++ b/Twig/RuntimeExtension.php
@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace KevinPapst\AdminLTEBundle\Twig;
+
+use KevinPapst\AdminLTEBundle\Helper\Constants;
+use KevinPapst\AdminLTEBundle\Helper\ContextHelper;
+use Twig\Extension\RuntimeExtensionInterface;
+
+final class RuntimeExtension implements RuntimeExtensionInterface
+{
+    /**
+     * @var ContextHelper<string, mixed>
+     */
+    private $context;
+    /**
+     * @var array<string, string|null>
+     */
+    private $routes;
+
+    /**
+     * @param ContextHelper<string, mixed> $contextHelper
+     * @param array<string, string|null> $routes
+     */
+    public function __construct(ContextHelper $contextHelper, array $routes)
+    {
+        $this->context = $contextHelper;
+        $this->routes = $routes;
+    }
+
+    /**
+     * @param string $routeName
+     * @return string
+     */
+    public function getRouteByAlias($routeName)
+    {
+        return $this->routes[$routeName] ?? $routeName;
+    }
+
+    /**
+     * @param string $type
+     * @return string
+     */
+    public function getTextType($type)
+    {
+        switch ($type) {
+            case Constants::TYPE_INFO:
+                $type = Constants::COLOR_AQUA;
+                break;
+            case Constants::TYPE_WARNING:
+                $type = Constants::COLOR_YELLOW;
+                break;
+            case Constants::TYPE_SUCCESS:
+                $type = Constants::COLOR_GREEN;
+                break;
+            case Constants::TYPE_ERROR:
+                $type = Constants::COLOR_RED;
+                break;
+        }
+
+        return 'text-' . $type;
+    }
+
+    /**
+     * @param string $classes
+     * @return string
+     */
+    public function bodyClass($classes = '')
+    {
+        $classList = [$classes];
+        $options = $this->context->getOptions();
+
+        if (isset($options['skin'])) {
+            $classList[] = $options['skin'];
+        }
+        if (isset($options['fixed_layout']) && true == $options['fixed_layout']) {
+            $classList[] = 'fixed';
+        }
+        if (isset($options['boxed_layout']) && true == $options['boxed_layout']) {
+            $classList[] = 'layout-boxed';
+        }
+        if (isset($options['collapsed_sidebar']) && true == $options['collapsed_sidebar']) {
+            $classList[] = 'sidebar-collapse';
+        }
+        if (isset($options['mini_sidebar']) && true == $options['mini_sidebar']) {
+            $classList[] = 'sidebar-mini';
+        }
+
+        return implode(' ', array_values($classList));
+    }
+}
diff --git a/UPGRADING.md b/UPGRADING.md
index a564717..fb0379b 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -1,5 +1,13 @@
 # Upgrading
 
+## From v3 to v4 (unreleased)
+
+Removed all Controller: already replaced with Twig functions for performance reasons in v3. 
+Templates will be now included directly.
+Check that overwritten templates/partials in your project still work (see `templates/bundles/AdminLTEBundle/`). 
+
+Made public API stricter by adding typehints and adding the final keyword to several classes. 
+
 ## From v2 to v3
 
 - Raised minimum requirement to Symfony 4.3
diff --git a/composer.json b/composer.json
index f52b56e..7878cf5 100644
--- a/composer.json
+++ b/composer.json
@@ -19,27 +19,29 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "symfony/config": ">4.1",
-        "symfony/dependency-injection": ">4.0",
-        "symfony/event-dispatcher" : ">4.3",
-        "symfony/http-foundation" : ">4.0",
-        "symfony/http-kernel"  : ">4.0",
-        "symfony/options-resolver": ">4.0",
-        "symfony/security-core": ">4.0",
+        "symfony/asset": ">4.3",
+        "symfony/config": ">4.3",
+        "symfony/dependency-injection": ">4.3",
+        "symfony/event-dispatcher": ">4.3",
+        "symfony/http-foundation": ">4.3",
+        "symfony/http-kernel": ">4.3",
+        "symfony/options-resolver": ">4.3",
+        "symfony/security-core": ">4.3",
+        "symfony/translation": ">4.3",
+        "symfony/twig-bridge": ">4.3",
         "twig/twig": ">2.0"
     },
     "require-dev": {
         "phpspec/prophecy": "^1.6",
-        "symfony/framework-bundle" : ">4.0",
+        "symfony/framework-bundle" : ">4.3",
         "friendsofphp/php-cs-fixer": "^2.10",
         "phpunit/phpunit": "^7.3",
-        "phpstan/phpstan": "^0.11.8",
+        "phpstan/phpstan": "^0.12",
         "knplabs/knp-menu-bundle": "^2.2",
-        "phpstan/phpstan-phpunit": "^0.11"
+        "phpstan/phpstan-phpunit": "^0.12"
     },
     "suggest" : {
-        "knplabs/knp-menu-bundle" : "Allows easy menu integration",
-        "friendsofsymfony/user-bundle": "Allows easy user management and security support"
+        "knplabs/knp-menu-bundle" : "Allows easy menu integration"
     },
     "autoload": {
         "psr-4": { "KevinPapst\\AdminLTEBundle\\": "" }
@@ -47,8 +49,8 @@
     "scripts": {
         "tests": "vendor/bin/phpunit Tests/",
         "phpstan": [
-            "vendor/bin/phpstan analyse . --level=6",
-            "vendor/bin/phpstan analyse -c Tests/phpstan.neon Tests --level=7"
+            "vendor/bin/phpstan analyse . --level=5",
+            "vendor/bin/phpstan analyse -c Tests/phpstan.neon Tests --level=5"
         ],
         "codestyle": "vendor/bin/php-cs-fixer fix --dry-run --verbose --show-progress=none",
         "codestyle-fix": "vendor/bin/php-cs-fixer fix"