diff --git a/composer.json b/composer.json
index 17d4760..4b86131 100644
--- a/composer.json
+++ b/composer.json
@@ -27,10 +27,10 @@
     "ext-fileinfo" : "*",
     "ext-session": "*",
     "oscarotero/env": "^2.1",
-    "symfony/templating": "^4.0|^5.0",
-    "symfony/twig-bundle": "^4.0|^5.0",
-    "symfony/asset": "^4.0|^5.0",
-    "symfony/http-client": "^4.0|^5.0",
+    "symfony/templating": "^4.0|^5.0|^6.0|^7.0",
+    "symfony/twig-bundle": "^4.0|^5.0|^6.0|^7.0",
+    "symfony/asset": "^4.0|^5.0|^6.0|^7.0",
+    "symfony/http-client": "^4.0|^5.0|^6.0|^7.0",
     "metabolism/wordpress-core-installer": "^1.0",
     "metabolism/package-actions": "^1.0",
     "metabolism/wp-steroids": "^1.3.0",
@@ -109,5 +109,8 @@
       "metabolism/package-actions": true,
       "metabolism/wordpress-core-installer": true
     }
+  },
+  "require-dev": {
+    "rector/rector": "^2.0"
   }
 }
diff --git a/rector.php b/rector.php
new file mode 100644
index 0000000..a28172c
--- /dev/null
+++ b/rector.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Symfony\Set\SymfonySetList;
+use Rector\TypeDeclaration\Rector\Closure\AddClosureVoidReturnTypeWhereNoReturnRector;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__ . '/config',
+        __DIR__ . '/samples/public',
+        __DIR__ . '/samples/src',
+        __DIR__ . '/src',
+    ])
+    ->withPreparedSets(symfonyConfigs: true)
+    ->withComposerBased(twig: true, doctrine: true)
+    //->withPhpSets()
+    //->withSymfonyContainerXml(__DIR__ . '/var/cache/dev/App_KernelDevDebugContainer.xml')
+    ->withSets([
+        //SymfonySetList::SYMFONY_73,
+        //SymfonySetList::SYMFONY_74,
+        //SymfonySetList::SYMFONY_CODE_QUALITY,
+        //SymfonySetList::SYMFONY_CONSTRUCTOR_INJECTION,
+    ])
+    ->withSkip([
+        AddClosureVoidReturnTypeWhereNoReturnRector::class
+    ])
+    ->withTypeCoverageLevel(0)
+    ->withDeadCodeLevel(0)
+    ->withCodeQualityLevel(0)
+;
diff --git a/samples/src/Twig/AppExtension.php b/samples/src/Twig/AppExtension.php
index 4dc4713..6d8ef78 100644
--- a/samples/src/Twig/AppExtension.php
+++ b/samples/src/Twig/AppExtension.php
@@ -22,20 +22,20 @@ class AppExtension extends AbstractExtension{
 	public function getFilters()
 	{
 		return [
-			new TwigFilter( 'clean_id', [$this,'cleanID'] ),
-			new TwigFilter( 'format_number', [$this,'formatNumber'] ),
-			new TwigFilter( 'll_CC', [$this,'llCC'] ),
-			new TwigFilter( 'br_to_space', [$this,'brToSpace'] ),
-			new TwigFilter( 'remove_accent', [$this,'removeAccent'] ),
-			new TwigFilter( 'typeOf', [$this,'typeOf'] ),
-			new TwigFilter( 'bind', [$this,'bind'] ),
-			new TwigFilter( 'implode', [$this,'implode'] ),
-			new TwigFilter( 'striptag', [$this, 'striptag']),
-			new TwigFilter( 'br_to_line', [$this, 'brToLine']),
-			new TwigFilter( 'remove_br', [$this, 'removeBr']),
-			new TwigFilter( 'file_content', [$this, 'getFileContent']),
-			new TwigFilter( 'wrap_embed', [$this, 'wrapEmbed']),
-			new TwigFilter( 'truncate', [$this, 'truncate'])		];
+			new TwigFilter( 'clean_id', $this->cleanID(...) ),
+			new TwigFilter( 'format_number', $this->formatNumber(...) ),
+			new TwigFilter( 'll_CC', $this->llCC(...) ),
+			new TwigFilter( 'br_to_space', $this->brToSpace(...) ),
+			new TwigFilter( 'remove_accent', $this->removeAccent(...) ),
+			new TwigFilter( 'typeOf', $this->typeOf(...) ),
+			new TwigFilter( 'bind', $this->bind(...) ),
+			new TwigFilter( 'implode', $this->implode(...) ),
+			new TwigFilter( 'striptag', $this->striptag(...)),
+			new TwigFilter( 'br_to_line', $this->brToLine(...)),
+			new TwigFilter( 'remove_br', $this->removeBr(...)),
+			new TwigFilter( 'file_content', $this->getFileContent(...)),
+			new TwigFilter( 'wrap_embed', $this->wrapEmbed(...)),
+			new TwigFilter( 'truncate', $this->truncate(...))		];
 	}
 
 	/**
@@ -44,7 +44,7 @@ public function getFilters()
 	public function getFunctions()
 	{
 		return [
-			new TwigFunction( 'blank', [$this,'blank'] )
+			new TwigFunction( 'blank', $this->blank(...) )
 		];
 	}
 
diff --git a/samples/src/Twig/TwigGlobalSubscriber.php b/samples/src/Twig/TwigGlobalSubscriber.php
index 8c5774d..38790fa 100644
--- a/samples/src/Twig/TwigGlobalSubscriber.php
+++ b/samples/src/Twig/TwigGlobalSubscriber.php
@@ -27,7 +27,7 @@ public function injectGlobalVariables( ControllerEvent $event ) {
         $this->twig->addGlobal( 'subsidiaries', $subsidiaries );
     }
 
-    public static function getSubscribedEvents() {
+    public static function getSubscribedEvents(): array {
         return [ KernelEvents::CONTROLLER =>  'injectGlobalVariables' ];
     }
 }
\ No newline at end of file
diff --git a/src/ArgumentResolver/BCValueResolverInterface.php b/src/ArgumentResolver/BCValueResolverInterface.php
new file mode 100644
index 0000000..e4bb829
--- /dev/null
+++ b/src/ArgumentResolver/BCValueResolverInterface.php
@@ -0,0 +1,23 @@
+<?php
+declare(strict_types=1);
+
+namespace Metabolism\WordpressBundle\ArgumentResolver;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
+use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
+use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
+
+/**
+ * For BC compatibility with Symfony < 6.2
+ */
+if (interface_exists(ValueResolverInterface::class)) {
+    interface BCValueResolverInterface extends ValueResolverInterface
+    {
+        public function supports(Request $request, ArgumentMetadata $argument): bool;
+    }
+} else {
+    interface BCValueResolverInterface extends ArgumentValueResolverInterface
+    {
+    }
+}
diff --git a/src/ArgumentResolver/BlogValueResolver.php b/src/ArgumentResolver/BlogValueResolver.php
index 6e8e40f..f098bcd 100644
--- a/src/ArgumentResolver/BlogValueResolver.php
+++ b/src/ArgumentResolver/BlogValueResolver.php
@@ -3,14 +3,13 @@
 namespace Metabolism\WordpressBundle\ArgumentResolver;
 
 use Metabolism\WordpressBundle\Entity\Blog;
-use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
 
 /**
  * Class Metabolism\WordpressBundle Framework
  */
-class BlogValueResolver implements ArgumentValueResolverInterface {
+class BlogValueResolver implements BCValueResolverInterface {
 
     /**
      * @param Request $request
@@ -29,6 +28,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool
      */
     public function resolve(Request $request, ArgumentMetadata $argument): iterable
     {
+        if (!$this->supports($request, $argument)) {
+            return [];
+        }
+
         yield Blog::getInstance();
     }
 }
diff --git a/src/ArgumentResolver/PostCollectionValueResolver.php b/src/ArgumentResolver/PostCollectionValueResolver.php
index 03834fd..823e50f 100644
--- a/src/ArgumentResolver/PostCollectionValueResolver.php
+++ b/src/ArgumentResolver/PostCollectionValueResolver.php
@@ -4,14 +4,13 @@
 
 use Metabolism\WordpressBundle\Entity\PostCollection;
 use Metabolism\WordpressBundle\Repository\PostRepository;
-use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
 
 /**
  * Class Metabolism\WordpressBundle Framework
  */
-class PostCollectionValueResolver implements ArgumentValueResolverInterface {
+class PostCollectionValueResolver implements BCValueResolverInterface {
 
     private $postRepository;
 
@@ -41,6 +40,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool
      */
     public function resolve(Request $request, ArgumentMetadata $argument): iterable
     {
+        if (!$this->supports($request, $argument)) {
+            return [];
+        }
+
         yield $this->postRepository->findQueried($argument->isNullable());
     }
 }
diff --git a/src/ArgumentResolver/PostValueResolver.php b/src/ArgumentResolver/PostValueResolver.php
index 9eca370..9defb0f 100644
--- a/src/ArgumentResolver/PostValueResolver.php
+++ b/src/ArgumentResolver/PostValueResolver.php
@@ -4,14 +4,13 @@
 
 use Metabolism\WordpressBundle\Entity\Post;
 use Metabolism\WordpressBundle\Repository\PostRepository;
-use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
 
 /**
  * Class Metabolism\WordpressBundle Framework
  */
-class PostValueResolver implements ArgumentValueResolverInterface {
+class PostValueResolver implements BCValueResolverInterface {
 
     private $postRepository;
 
@@ -44,6 +43,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool
      */
     public function resolve(Request $request, ArgumentMetadata $argument): iterable
     {
+        if (!$this->supports($request, $argument)) {
+            return [];
+        }
+
         yield $this->postRepository->findQueried($argument->isNullable());
     }
 }
diff --git a/src/ArgumentResolver/TermValueResolver.php b/src/ArgumentResolver/TermValueResolver.php
index 08d15b9..72c4c88 100644
--- a/src/ArgumentResolver/TermValueResolver.php
+++ b/src/ArgumentResolver/TermValueResolver.php
@@ -4,14 +4,13 @@
 
 use Metabolism\WordpressBundle\Entity\Term;
 use Metabolism\WordpressBundle\Repository\TermRepository;
-use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
 
 /**
  * Class Metabolism\WordpressBundle Framework
  */
-class TermValueResolver implements ArgumentValueResolverInterface {
+class TermValueResolver implements BCValueResolverInterface {
 
     private $termRepository;
 
@@ -41,6 +40,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool
      */
     public function resolve(Request $request, ArgumentMetadata $argument): iterable
     {
+        if (!$this->supports($request, $argument)) {
+            return [];
+        }
+
         yield $this->termRepository->findQueried($argument->isNullable());
     }
 }
diff --git a/src/ArgumentResolver/UserValueResolver.php b/src/ArgumentResolver/UserValueResolver.php
index 8a73589..ed50fdb 100644
--- a/src/ArgumentResolver/UserValueResolver.php
+++ b/src/ArgumentResolver/UserValueResolver.php
@@ -11,7 +11,7 @@
 /**
  * Class Metabolism\WordpressBundle Framework
  */
-class UserValueResolver implements ArgumentValueResolverInterface {
+class UserValueResolver implements BCValueResolverInterface {
 
     private $userRepository;
 
@@ -41,6 +41,10 @@ public function supports(Request $request, ArgumentMetadata $argument): bool
      */
     public function resolve(Request $request, ArgumentMetadata $argument): iterable
     {
+        if (!$this->supports($request, $argument)) {
+            return [];
+        }
+
         yield $this->userRepository->findQueried($argument->isNullable());
     }
 }
diff --git a/src/DependencyInjection/WordpressExtension.php b/src/DependencyInjection/WordpressExtension.php
index 00cd75e..20b02f9 100644
--- a/src/DependencyInjection/WordpressExtension.php
+++ b/src/DependencyInjection/WordpressExtension.php
@@ -6,7 +6,7 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 
 /**
  * Class Metabolism\WordpressBundle Framework
@@ -33,12 +33,4 @@ public function prepend(ContainerBuilder $container)
     {
         // TODO: Implement prepend() method.
     }
-
-    /**
-     * @return string
-     */
-    public function getAlias()
-    {
-        return parent::getAlias();
-    }
 }
diff --git a/src/EventSubscriber/KernelEventsSubscriber.php b/src/EventSubscriber/KernelEventsSubscriber.php
index fb0be44..b1df2d2 100644
--- a/src/EventSubscriber/KernelEventsSubscriber.php
+++ b/src/EventSubscriber/KernelEventsSubscriber.php
@@ -15,7 +15,7 @@ class KernelEventsSubscriber implements EventSubscriberInterface
     /**
      * @return array
      */
-    public static function getSubscribedEvents()
+    public static function getSubscribedEvents(): array
     {
         return [
             KernelEvents::CONTROLLER => 'onKernelController',
diff --git a/src/Twig/WordpressTwigExtension.php b/src/Twig/WordpressTwigExtension.php
index 4d863d4..f20ccb8 100644
--- a/src/Twig/WordpressTwigExtension.php
+++ b/src/Twig/WordpressTwigExtension.php
@@ -29,23 +29,23 @@ public function getFilters(): array
     {
         return [
             new TwigFilter( 'handle', 'sanitize_title' ),
-            new TwigFilter( 'placeholder', [$this, 'placeholder'] ),
-            new TwigFilter( 'more', [$this, 'more'] ),
-            new TwigFilter( 'resize', [$this, 'resize'] ),
-            new TwigFilter( 'picture', [$this, 'picture'] ),
-            new TwigFilter( 'blurhash', [$this, 'blurhash'] ),
-            new TwigFilter( 'figure', [$this, 'figure'] ),
+            new TwigFilter( 'placeholder', $this->placeholder(...) ),
+            new TwigFilter( 'more', $this->more(...) ),
+            new TwigFilter( 'resize', $this->resize(...) ),
+            new TwigFilter( 'picture', $this->picture(...) ),
+            new TwigFilter( 'blurhash', $this->blurhash(...) ),
+            new TwigFilter( 'figure', $this->figure(...) ),
             new TwigFilter( 'stripshortcodes','strip_shortcodes' ),
             new TwigFilter( 'trim_words','wp_trim_words' ),
-            new TwigFilter( 'function', [$this, 'execFunction'] ),
+            new TwigFilter( 'function', $this->execFunction(...) ),
             new TwigFilter( 'excerpt','wp_trim_words' ),
             new TwigFilter( 'sanitize','sanitize_title' ),
             new TwigFilter( 'base64_encode','base64_encode' ),
             new TwigFilter( 'base64_decode','base64_decode' ),
-            new TwigFilter( 'shortcodes', [$this, 'doShortcode'] ),
+            new TwigFilter( 'shortcodes', $this->doShortcode(...) ),
             new TwigFilter( 'wpautop','wpautop' ),
-            new TwigFilter( 'array',[$this, 'toArray'] ),
-            new TwigFilter( 'file_exists',[$this, 'fileExists'] ),
+            new TwigFilter( 'array',$this->toArray(...) ),
+            new TwigFilter( 'file_exists',$this->fileExists(...) ),
         ];
     }
 
@@ -57,20 +57,20 @@ public function getFunctions(): array
         $blog = Blog::getInstance();
 
         return [
-            new TwigFunction( 'placeholder', [$this, 'generatePlaceholder'] ),
-            new TwigFunction( 'pixel', [$this, 'generatePixel'] ),
-            new TwigFunction( 'fn', [$this, 'execFunction'] ),
-            new TwigFunction( 'function', [$this, 'execFunction'] ),
-            new TwigFunction( 'action', [$this, 'doAction'] ),
+            new TwigFunction( 'placeholder', $this->generatePlaceholder(...) ),
+            new TwigFunction( 'pixel', $this->generatePixel(...) ),
+            new TwigFunction( 'fn', $this->execFunction(...) ),
+            new TwigFunction( 'function', $this->execFunction(...) ),
+            new TwigFunction( 'action', $this->doAction(...) ),
             new TwigFunction( 'shortcode', 'do_shortcode' ),
             new TwigFunction( 'login_url', 'wp_login_url' ),
             new TwigFunction( 'home_url', 'get_home_url' ),
             new TwigFunction( 'search_form', 'get_search_form' ),
-            new TwigFunction( 'archive_url', [$blog, 'getArchiveLink'] ),
-            new TwigFunction( 'archive_title', [$blog, 'getArchiveTitle'] ),
+            new TwigFunction( 'archive_url', $blog->getArchiveLink(...) ),
+            new TwigFunction( 'archive_title', $blog->getArchiveTitle(...) ),
             new TwigFunction( 'attachment_url', 'wp_get_attachment_url' ),
-            new TwigFunction( 'post_url', [$this, 'getPermalink'] ),
-            new TwigFunction( 'term_url', [$this, 'getTermLink'] ),
+            new TwigFunction( 'post_url', $this->getPermalink(...) ),
+            new TwigFunction( 'term_url', $this->getTermLink(...) ),
             new TwigFunction( 'bloginfo', 'get_bloginfo' ),
             new TwigFunction( 'dynamic_sidebar', function($id){ return $this->getOutput('dynamic_sidebar', [$id]); }, ['is_safe' => array('html')]  ),
             new TwigFunction( 'comment_form', function($post_id, $args=[]){ return $this->getOutput('comment_form', [$args, $post_id]); }, ['is_safe' => array('html')]  ),