diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 6070c47..a2af597 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -46,8 +46,7 @@ jobs:
                   dependency-versions: ${{ matrix.dependency-versions }}
 
             - name: Execute test cases
-              run: time composer test
-
+              run: composer test
 
     php-lint:
         name: "PHP Lint"
diff --git a/composer.json b/composer.json
index 3316315..c8f1443 100644
--- a/composer.json
+++ b/composer.json
@@ -12,13 +12,15 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.6",
+        "jackalope/jackalope-doctrine-dbal": "^1.7",
         "phpstan/extension-installer": "^1.1",
         "phpstan/phpstan": "^1.6",
         "phpstan/phpstan-phpunit": "^1.0",
         "phpstan/phpstan-strict-rules": "^1.1",
         "phpstan/phpstan-webmozart-assert": "^1.0",
         "phpunit/phpunit": "^9.5",
-        "rector/rector-src": "dev-main",
+        "rector/rector": "dev-main",
+        "sulu/sulu": "^2.5@dev",
         "thecodingmachine/phpstan-strict-rules": "^1.0"
     },
     "autoload": {
@@ -41,8 +43,15 @@
     "scripts": {
         "lint": [
             "@php-cs",
-            "@lint-composer"
+            "@lint-composer",
+            "@lint-rector"
         ],
+        "fix": [
+            "@php-cs-fix",
+            "@rector"
+        ],
+        "lint-rector": "@php vendor/bin/rector process --dry-run",
+        "rector": "@php vendor/bin/rector process",
         "lint-composer": "@composer validate --strict",
         "phpstan": "@php vendor/bin/phpstan analyze",
         "php-cs": "@php vendor/bin/php-cs-fixer fix --verbose --diff --dry-run",
diff --git a/config/config.php b/config/config.php
index 71e89bd..5b8fd99 100644
--- a/config/config.php
+++ b/config/config.php
@@ -14,7 +14,7 @@
         ->autowire()
         ->autoconfigure();
 
-    $services->load('Sulu\\Rector', __DIR__ . '/../src')
+    $services->load('Sulu\\Rector\\', __DIR__ . '/../src')
         ->exclude([__DIR__ . '/../src/{Rector,ValueObject}']);
 
     $rectorConfig->rule(RenameClassNonPhpRector::class);
diff --git a/config/sets/sulu/sulu-24.php b/config/sets/sulu/sulu-24.php
index d086828..7b6c7f0 100644
--- a/config/sets/sulu/sulu-24.php
+++ b/config/sets/sulu/sulu-24.php
@@ -3,7 +3,27 @@
 declare(strict_types=1);
 
 use Rector\Config\RectorConfig;
+use Rector\Renaming\Rector\MethodCall\RenameMethodRector;
+use Rector\Renaming\ValueObject\MethodCallRename;
 
 return static function (RectorConfig $rectorConfig): void {
-    // TODO configure upgrades
+    $rectorConfig
+        ->ruleWithConfiguration(RenameMethodRector::class, [
+            // @see https://github.com/sulu/sulu/pull/6071
+            new MethodCallRename(
+                'Sulu\Component\Localization\Localization',
+                'setXDefault',
+                'setDefault',
+            ),
+            new MethodCallRename(
+                'Sulu\Component\Localization\Localization',
+                'getXDefault',
+                'getDefault',
+            ),
+            new MethodCallRename(
+                'Sulu\Component\Localization\Localization',
+                'isXDefault',
+                'isDefault',
+            ),
+        ]);
 };
diff --git a/phpstan.neon b/phpstan.neon
index a467c56..f8df184 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -3,7 +3,18 @@ parameters:
         - config
         - src
         - tests
+
     level: max
 
     scanDirectories:
         - stubs
+
+    bootstrapFiles:
+        - vendor/rector/rector/vendor/scoper-autoload.php
+
+
+    ignoreErrors:
+        # allowed on null-safe calls
+        -
+            message: '#Do not use chained method calls\. Put each on separated lines#'
+            path: config/config.php
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
new file mode 100644
index 0000000..a7ae43c
--- /dev/null
+++ b/phpunit.xml.dist
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+     xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+     bootstrap="vendor/autoload.php"
+     colors="true"
+     failOnRisky="true"
+     failOnIncomplete="true"
+>
+    <testsuites>
+        <testsuite name="Project Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <coverage processUncoveredFiles="true">
+        <include>
+            <directory suffix=".php">src</directory>
+            <directory suffix=".php">config</directory>
+        </include>
+    </coverage>
+</phpunit>
diff --git a/rector.php b/rector.php
new file mode 100644
index 0000000..f8c3ff0
--- /dev/null
+++ b/rector.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\LevelSetList;
+use Rector\Set\ValueObject\SetList;
+
+return static function (RectorConfig $rectorConfig): void {
+    $services = $rectorConfig->services();
+    $rectorConfig->importNames();
+    $rectorConfig->paths([__DIR__ . '/src', __DIR__ . '/tests']);
+
+    $rectorConfig->parallel();
+
+    // for testing
+    $rectorConfig->import(__DIR__ . '/config/config.php');
+
+    $rectorConfig->sets([
+        LevelSetList::UP_TO_PHP_81,
+        SetList::CODE_QUALITY,
+        SetList::DEAD_CODE,
+        SetList::NAMING,
+    ]);
+};
diff --git a/tests/Set/Sulu24/Fixture/localization.php.inc b/tests/Set/Sulu24/Fixture/localization.php.inc
new file mode 100644
index 0000000..ab31738
--- /dev/null
+++ b/tests/Set/Sulu24/Fixture/localization.php.inc
@@ -0,0 +1,25 @@
+<?php
+
+class SomeClass {
+    public function someMethod(\Sulu\Component\Localization\Localization $localization)
+    {
+        $localization->setXDefault('en');
+        $localization->getXDefault();
+        $localization->isXDefault();
+    }
+}
+
+?>
+---
+<?php
+
+class SomeClass {
+    public function someMethod(\Sulu\Component\Localization\Localization $localization)
+    {
+        $localization->setDefault('en');
+        $localization->getDefault();
+        $localization->isDefault();
+    }
+}
+
+?>
diff --git a/tests/Set/Sulu24/Sulu24Test.php b/tests/Set/Sulu24/Sulu24Test.php
new file mode 100644
index 0000000..0a2fb43
--- /dev/null
+++ b/tests/Set/Sulu24/Sulu24Test.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Symfony\Tests\Set\Symfony43;
+
+use Iterator;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+use Symplify\SmartFileSystem\SmartFileInfo;
+
+final class Sulu24Test extends AbstractRectorTestCase
+{
+    /**
+     * @dataProvider provideData()
+     */
+    public function test(SmartFileInfo $fileInfo): void
+    {
+        $this->doTestFileInfo($fileInfo);
+    }
+
+    /**
+     * @return Iterator<SmartFileInfo>
+     */
+    public function provideData(): Iterator
+    {
+        return $this->yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/sulu-24.php';
+    }
+}
diff --git a/tests/Set/Sulu24/config/sulu-24.php b/tests/Set/Sulu24/config/sulu-24.php
new file mode 100644
index 0000000..37c10e0
--- /dev/null
+++ b/tests/Set/Sulu24/config/sulu-24.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Sulu\Rector\Set\SuluSetList;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->import(__DIR__ . '/../../../../config/config.php');
+    $rectorConfig->sets([SuluSetList::SULU_24]);
+};