diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index b89bae1f..9e877561 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -49,44 +49,69 @@
         true
     )
     ->addRules([
-        '@PHP81Migration' => true,
-        '@PSR12' => true,
-        'declare_strict_types' => true,
-        //'fully_qualified_strict_types' => true, // conflicts currently with Rector
-        'global_namespace_import' => [
-            'import_classes' => true,
-            'import_constants' => true,
-            'import_functions' => true,
+        '@DoctrineAnnotation' => true,
+        // @todo: Switch to @PER-CS2.0 once php-cs-fixer's todo list is done: https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/issues/7247
+        '@PER-CS1.0' => true,
+        'array_indentation' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'cast_spaces' => ['space' => 'none'],
+        // @todo: Can be dropped once we enable @PER-CS2.0
+        'concat_space' => ['spacing' => 'one'],
+        'declare_equal_normalize' => ['space' => 'none'],
+        'declare_parentheses' => true,
+        'dir_constant' => true,
+        // @todo: Can be dropped once we enable @PER-CS2.0
+        'function_declaration' => [
+            'closure_fn_spacing' => 'none',
         ],
-        'no_unneeded_import_alias' => true,
-        'phpdoc_align' => true,
-        'phpdoc_annotation_without_dot' => true,
-        'phpdoc_indent' => true,
-        'phpdoc_inline_tag_normalizer' => true,
-        'phpdoc_line_span' => true,
-        'phpdoc_no_useless_inheritdoc' => true,
-        'phpdoc_order' => true,
-        'phpdoc_order_by_value' => true,
-        'phpdoc_separation' => true,
-        'phpdoc_single_line_var_spacing' => true,
-        'phpdoc_summary' => true,
-        'phpdoc_tag_casing' => true,
-        'phpdoc_tag_type' => true,
-        'phpdoc_to_comment' => [
-            'ignored_tags' => [
-                'phpstan-ignore-line',
-                'phpstan-ignore-next-line',
-                'todo',
-            ],
+        'function_to_constant' => ['functions' => ['get_called_class', 'get_class', 'get_class_this', 'php_sapi_name', 'phpversion', 'pi']],
+        'type_declaration_spaces' => true,
+        'global_namespace_import' => ['import_classes' => false, 'import_constants' => false, 'import_functions' => false],
+        'list_syntax' => ['syntax' => 'short'],
+        // @todo: Can be dropped once we enable @PER-CS2.0
+        'method_argument_space' => true,
+        'modernize_strpos' => true,
+        'modernize_types_casting' => true,
+        'native_function_casing' => true,
+        'no_alias_functions' => true,
+        'no_blank_lines_after_phpdoc' => true,
+        'no_empty_phpdoc' => true,
+        'no_empty_statement' => true,
+        'no_extra_blank_lines' => true,
+        'no_leading_namespace_whitespace' => true,
+        'no_null_property_initialization' => true,
+        'no_short_bool_cast' => true,
+        'no_singleline_whitespace_before_semicolons' => true,
+        'no_superfluous_elseif' => true,
+        'no_trailing_comma_in_singleline' => true,
+        'no_unneeded_control_parentheses' => true,
+        'no_unused_imports' => true,
+        'no_useless_else' => true,
+        'no_useless_nullsafe_operator' => true,
+        'nullable_type_declaration' => [
+            'syntax' => 'question_mark',
         ],
-        'phpdoc_trim_consecutive_blank_line_separation' => true,
-        'phpdoc_types_order' => [
-            'null_adjustment' => 'always_last',
-            'sort_algorithm' => 'alpha',
-        ],
-        'phpdoc_var_annotation_correct_order' => true,
-        'phpdoc_var_without_name' => true,
-        'self_accessor' => true,
+        'nullable_type_declaration_for_default_null_value' => true,
+        'ordered_imports' => ['imports_order' => ['class', 'function', 'const'], 'sort_algorithm' => 'alpha'],
+        'php_unit_construct' => ['assertions' => ['assertEquals', 'assertSame', 'assertNotEquals', 'assertNotSame']],
+        'php_unit_mock_short_will_return' => true,
+        'php_unit_test_case_static_method_calls' => ['call_type' => 'self'],
+        'phpdoc_no_access' => true,
+        'phpdoc_no_empty_return' => true,
+        'phpdoc_no_package' => true,
+        'phpdoc_scalar' => true,
+        'phpdoc_trim' => true,
+        'phpdoc_types' => true,
+        'phpdoc_types_order' => ['null_adjustment' => 'always_last', 'sort_algorithm' => 'none'],
+        'return_type_declaration' => ['space_before' => 'none'],
+        'single_quote' => true,
+        'single_space_around_construct' => true,
+        'single_line_comment_style' => ['comment_types' => ['hash']],
+        // @todo: Can be dropped once we enable @PER-CS2.0
+        'single_line_empty_body' => true,
+        'trailing_comma_in_multiline' => ['elements' => ['arrays']],
+        'whitespace_after_comma_in_array' => ['ensure_single_space' => true],
+        'yoda_style' => ['equal' => false, 'identical' => false, 'less_and_greater' => false],
     ])
 ;
 $config->getFinder()
diff --git a/src/Command/ExtensionsTerJsonCreateCommand.php b/src/Command/ExtensionsTerJsonCreateCommand.php
index 64dc8dcc..6d76bd48 100644
--- a/src/Command/ExtensionsTerJsonCreateCommand.php
+++ b/src/Command/ExtensionsTerJsonCreateCommand.php
@@ -25,18 +25,12 @@
 
 use Composer\Semver\Semver;
 use Composer\Semver\VersionParser;
-use DateTimeImmutable;
 use GuzzleHttp\Client;
-use RuntimeException;
-use SimpleXMLElement;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 
-use function is_array;
-use function is_string;
-
 /**
  * @codeCoverageIgnore
  */
@@ -83,12 +77,12 @@ class ExtensionsTerJsonCreateCommand extends Command
     private const ALIASES_FILE = 'aliases.json';
 
     /**
-     * @var array<int, SimpleXMLElement>
+     * @var array<int, \SimpleXMLElement>
      */
     protected array $extensions = [];
 
     /**
-     * @var array<string, SimpleXMLElement>
+     * @var array<string, \SimpleXMLElement>
      */
     protected array $extensionKeys = [];
 
@@ -199,7 +193,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         /** @var string $outputDir */
         $outputDir = $input->getArgument('output-dir');
         if (($outputPath = realpath($outputDir)) === false) {
-            throw new RuntimeException(\sprintf('Path "%s" not found.', $outputDir), 1_660_250_640);
+            throw new \RuntimeException(\sprintf('Path "%s" not found.', $outputDir), 1_660_250_640);
         }
 
         $this->outputDir = $outputPath;
@@ -241,27 +235,27 @@ protected function fetchComposerNames(): void
         );
         $responseBody = $response->getBody()->getContents();
 
-        if (!is_array($json = \json_decode($responseBody, true, 512, JSON_THROW_ON_ERROR))) {
-            throw new RuntimeException('Invalid response.', 1_660_251_247);
+        if (!\is_array($json = \json_decode($responseBody, true, 512, JSON_THROW_ON_ERROR))) {
+            throw new \RuntimeException('Invalid response.', 1_660_251_247);
         }
 
         if ($json['meta'] !== null) {
-            throw new RuntimeException($json['meta']['error']);
+            throw new \RuntimeException($json['meta']['error']);
         }
 
-        if (is_array($json['data'])) {
+        if (\is_array($json['data'])) {
             // Assign core extensions
             foreach (self::$coreExtensions as $extKey => $composerName) {
                 $json['data'][$extKey]['composer_name'] = $composerName;
             }
 
             foreach ($json['data'] as $extKey => $settings) {
-                if (!is_string($extKey)) {
-                    throw new RuntimeException('Invalid extension key.', 1_660_251_470);
+                if (!\is_string($extKey)) {
+                    throw new \RuntimeException('Invalid extension key.', 1_660_251_470);
                 }
 
-                if (!is_string($settings['composer_name'])) {
-                    throw new RuntimeException('Invalid package name.', 1_660_251_471);
+                if (!\is_string($settings['composer_name'])) {
+                    throw new \RuntimeException('Invalid package name.', 1_660_251_471);
                 }
 
                 self::$abandonedExtensionKeys[$extKey] = $settings['composer_name'];
@@ -287,7 +281,7 @@ protected function saveAliases(): string
     }
 
     /**
-     * @return SimpleXMLElement[]
+     * @return \SimpleXMLElement[]
      */
     protected function getExtensions(): array
     {
@@ -302,10 +296,10 @@ protected function getExtensions(): array
                 ]
             );
             if (($extensionsXml = gzdecode($response->getBody()->getContents())) === false) {
-                throw new RuntimeException('Invalid response.', 1_660_251_597);
+                throw new \RuntimeException('Invalid response.', 1_660_251_597);
             }
 
-            $extensionsObject = new SimpleXMLElement($extensionsXml);
+            $extensionsObject = new \SimpleXMLElement($extensionsXml);
             $this->extensions = $extensionsObject->xpath('/extensions/extension');
             $this->initExtensionKeys($this->extensions);
         }
@@ -314,7 +308,7 @@ protected function getExtensions(): array
     }
 
     /**
-     * @param SimpleXMLElement[] $extensions
+     * @param \SimpleXMLElement[] $extensions
      */
     protected function initExtensionKeys(array $extensions): void
     {
@@ -328,7 +322,7 @@ protected function initExtensionKeys(array $extensions): void
     }
 
     /**
-     * @param SimpleXMLElement[] $extensions
+     * @param \SimpleXMLElement[] $extensions
      *
      * @return array<string, array<int|string, array<int|string, mixed[]>&mixed[]>&mixed[]>
      */
@@ -336,7 +330,7 @@ protected function getPackages(array $extensions): array
     {
         $packages = [];
         //$quarter = mktime(0, 0, 0, floor((date('m') - 1) / 3) * 3 + 1, 1, date('Y'));
-        $dateTimeToday = new DateTimeImmutable();
+        $dateTimeToday = new \DateTimeImmutable();
         $new = $dateTimeToday->modify('yesterday')->getTimestamp();
 
         foreach ($extensions as $extension) {
@@ -410,7 +404,7 @@ protected function getPackages(array $extensions): array
      *   dist: array<string, string>
      * }|array{}
      */
-    protected function getPackageArray(SimpleXMLElement $extension, SimpleXMLElement $version): array
+    protected function getPackageArray(\SimpleXMLElement $extension, \SimpleXMLElement $version): array
     {
         $extKey = (string)$extension['extensionkey'];
         $autoload = [
@@ -424,7 +418,7 @@ protected function getPackageArray(SimpleXMLElement $extension, SimpleXMLElement
         ];
         if ($version->composerinfo !== null) {
             $composerInfo = json_decode((string)$version->composerinfo, true, 512);
-            if (is_array($composerInfo) && is_array($composerInfo['autoload'] ?? null)) {
+            if (\is_array($composerInfo) && \is_array($composerInfo['autoload'] ?? null)) {
                 $autoload = $composerInfo['autoload'];
             }
         }
@@ -463,7 +457,7 @@ protected function getPackageArray(SimpleXMLElement $extension, SimpleXMLElement
 
         $dependencies = unserialize((string)$version->dependencies);
 
-        if (!is_array($dependencies)) {
+        if (!\is_array($dependencies)) {
             // Ignore extensions with invalid dependencies
             return [];
         }
diff --git a/src/Command/ListMissingDownloadsCommand.php b/src/Command/ListMissingDownloadsCommand.php
index 011dd70f..4760e284 100644
--- a/src/Command/ListMissingDownloadsCommand.php
+++ b/src/Command/ListMissingDownloadsCommand.php
@@ -30,7 +30,6 @@
 use Symfony\Component\HttpClient\Exception\RedirectionException;
 use Symfony\Component\HttpClient\HttpClient;
 use Symfony\Component\Yaml\Yaml;
-use Exception;
 
 /**
  * @codeCoverageIgnore
@@ -115,7 +114,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
             $yaml = Yaml::dump($result, 4);
             file_put_contents('missing-downloads.yaml', $yaml);
         } else {
-            throw new Exception(
+            throw new \Exception(
                 'Invalid response with status code ' . $statusCode . ' and content type ' . $contentType
             );
         }
@@ -146,7 +145,7 @@ private function getFixedUrl(string $url, string $release, int $format): string
             }
 
             return 'redirect failed for ' . $url;
-        } catch (Exception $exception) {
+        } catch (\Exception $exception) {
             return $exception->getMessage();
         }
     }
@@ -158,7 +157,7 @@ private function checkRedirect(string $url): bool
         try {
             $client->request('GET', $url, ['max_redirects' => 0]);
 
-            throw new Exception('something went wrong while calling ' . $url);
+            throw new \Exception('something went wrong while calling ' . $url);
         } catch (RedirectionException) {
             return true;
         } catch (ClientException) {
diff --git a/src/Command/SatisBuildCommand.php b/src/Command/SatisBuildCommand.php
index 0a82d97b..41b236b7 100644
--- a/src/Command/SatisBuildCommand.php
+++ b/src/Command/SatisBuildCommand.php
@@ -23,7 +23,6 @@
 
 namespace App\Command;
 
-use DateTimeImmutable;
 use Symfony\Component\Console\Application;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\ArrayInput;
@@ -32,7 +31,6 @@
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Process\Process;
-use RuntimeException;
 
 /**
  * @codeCoverageIgnore
@@ -99,12 +97,12 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         /** @var bool $autoBuildAll */
         $autoBuildAll = $input->getOption('auto');
 
-        if ($autoBuildAll && (new DateTimeImmutable())->format('G') === '3') {
+        if ($autoBuildAll && (new \DateTimeImmutable())->format('G') === '3') {
             $buildAll = \true;
         }
 
         if (!($application = $this->getApplication()) instanceof Application) {
-            throw new RuntimeException('Application is not initialized.', 1_660_125_012);
+            throw new \RuntimeException('Application is not initialized.', 1_660_125_012);
         }
 
         // Run extensions:ter:json:create
diff --git a/src/Command/SatisJsonCreateCommand.php b/src/Command/SatisJsonCreateCommand.php
index b949fb2e..5a9d45e6 100644
--- a/src/Command/SatisJsonCreateCommand.php
+++ b/src/Command/SatisJsonCreateCommand.php
@@ -28,7 +28,6 @@
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
-use RuntimeException;
 
 /**
  * @codeCoverageIgnore
@@ -75,7 +74,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         }
 
         if (!is_writable($configFile)) {
-            throw new RuntimeException(sprintf('File "%s" is not writable', $configFile), 1_438_441_994);
+            throw new \RuntimeException(sprintf('File "%s" is not writable', $configFile), 1_438_441_994);
         }
 
         $repositories = [
@@ -96,7 +95,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $satis->useProviders();
 
         if (file_put_contents($configFile, (string)$satis) === false) {
-            throw new RuntimeException(sprintf('File "%s" could not be written, reason unknown', $configFile), 1_438_442_238);
+            throw new \RuntimeException(sprintf('File "%s" could not be written, reason unknown', $configFile), 1_438_442_238);
         }
 
         $output->writeln(sprintf('Successfully created "%s" with repository dir "%s"', $configFile, $repositoryDir));
diff --git a/src/Controller/Admin/DashboardController.php b/src/Controller/Admin/DashboardController.php
index 96d0b9de..a40ed37a 100644
--- a/src/Controller/Admin/DashboardController.php
+++ b/src/Controller/Admin/DashboardController.php
@@ -32,7 +32,6 @@
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Component\Security\Http\Attribute\IsGranted;
-use Iterator;
 
 #[IsGranted('ROLE_ADMIN')]
 class DashboardController extends AbstractDashboardController
@@ -50,7 +49,7 @@ public function configureDashboard(): Dashboard
     }
 
     /**
-     * @return Iterator<\EasyCorp\Bundle\EasyAdminBundle\Config\Menu\CrudMenuItem|\EasyCorp\Bundle\EasyAdminBundle\Config\Menu\DashboardMenuItem>
+     * @return \Iterator<\EasyCorp\Bundle\EasyAdminBundle\Config\Menu\CrudMenuItem|\EasyCorp\Bundle\EasyAdminBundle\Config\Menu\DashboardMenuItem>
      */
     public function configureMenuItems(): iterable
     {
diff --git a/src/Controller/Admin/MajorVersionCrudController.php b/src/Controller/Admin/MajorVersionCrudController.php
index ae55fc0a..28152ee2 100644
--- a/src/Controller/Admin/MajorVersionCrudController.php
+++ b/src/Controller/Admin/MajorVersionCrudController.php
@@ -32,10 +32,8 @@
 use EasyCorp\Bundle\EasyAdminBundle\Field\DateTimeField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\NumberField;
-use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\TextareaField;
-
-use function in_array;
+use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
 
 class MajorVersionCrudController extends AbstractCrudController
 {
@@ -64,7 +62,7 @@ public function configureFields(string $pageName): iterable
         yield TextField::new('title', 'Title');
         yield TextField::new('subtitle', 'Subtitle');
 
-        if (in_array($pageName, [Crud::PAGE_DETAIL, Crud::PAGE_EDIT, Crud::PAGE_NEW], true)) {
+        if (\in_array($pageName, [Crud::PAGE_DETAIL, Crud::PAGE_EDIT, Crud::PAGE_NEW], true)) {
             yield TextareaField::new('description', 'Description');
         }
 
diff --git a/src/Controller/Admin/ReleaseCrudController.php b/src/Controller/Admin/ReleaseCrudController.php
index 9d059514..dce6d2be 100644
--- a/src/Controller/Admin/ReleaseCrudController.php
+++ b/src/Controller/Admin/ReleaseCrudController.php
@@ -35,13 +35,10 @@
 use EasyCorp\Bundle\EasyAdminBundle\Field\ChoiceField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\DateTimeField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
-use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\TextareaField;
+use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\UrlField;
 
-use function array_flip;
-use function in_array;
-
 class ReleaseCrudController extends AbstractCrudController
 {
     public static function getEntityFqcn(): string
@@ -72,11 +69,11 @@ public function configureFields(string $pageName): iterable
         yield IdField::new('version', 'Release Version');
         yield DateTimeField::new('date', 'Release Date');
         yield ChoiceField::new('type', 'Release Type')->setChoices(
-            static fn () => array_flip(ReleaseTypeEnum::getAvailableOptions(true))
+            static fn() => \array_flip(ReleaseTypeEnum::getAvailableOptions(true))
         );
         yield BooleanField::new('elts', 'ELTS Release');
 
-        if (in_array($pageName, [Crud::PAGE_DETAIL, Crud::PAGE_EDIT, Crud::PAGE_NEW], true)) {
+        if (\in_array($pageName, [Crud::PAGE_DETAIL, Crud::PAGE_EDIT, Crud::PAGE_NEW], true)) {
             yield TextField::new('tarPackage.md5sum', 'Tar Package MD5 Checksum');
             yield TextField::new('tarPackage.sha1sum', 'Tar Package SHA1 Checksum');
             yield TextField::new('tarPackage.sha256sum', 'Tar Package SHA256 Checksum');
diff --git a/src/Controller/Admin/RequirementCrudController.php b/src/Controller/Admin/RequirementCrudController.php
index c0372e64..246539bc 100644
--- a/src/Controller/Admin/RequirementCrudController.php
+++ b/src/Controller/Admin/RequirementCrudController.php
@@ -34,8 +34,6 @@
 use EasyCorp\Bundle\EasyAdminBundle\Field\ChoiceField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
 
-use function array_flip;
-
 class RequirementCrudController extends AbstractCrudController
 {
     public static function getEntityFqcn(): string
@@ -70,7 +68,7 @@ public function configureFields(string $pageName): iterable
     {
         yield AssociationField::new('version', 'Major Version');
         yield ChoiceField::new('category', 'Category')->setChoices(
-            static fn () => array_flip(RequirementCategoryEnum::getAvailableOptions(true))
+            static fn() => \array_flip(RequirementCategoryEnum::getAvailableOptions(true))
         );
         yield TextField::new('name', 'Name');
         yield TextField::new('min', 'Lower Bound');
diff --git a/src/Controller/Api/AbstractController.php b/src/Controller/Api/AbstractController.php
index 9dd785c7..e361458c 100644
--- a/src/Controller/Api/AbstractController.php
+++ b/src/Controller/Api/AbstractController.php
@@ -38,12 +38,6 @@
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Validator\ConstraintViolationInterface;
 use Symfony\Contracts\Cache\TagAwareCacheInterface;
-use DateTime;
-use DateTimeImmutable;
-
-use function iterator_apply;
-use function iterator_to_array;
-use function is_string;
 
 abstract class AbstractController extends \Symfony\Bundle\FrameworkBundle\Controller\AbstractController
 {
@@ -112,13 +106,13 @@ protected function validateObject(object $object): void
         if ($violations->count() > 0) {
             $messages = '';
 
-            iterator_apply(
+            \iterator_apply(
                 $violations,
                 static function (ConstraintViolationInterface $violation) use (&$messages): bool {
                     $messages .= \sprintf("%s: %s\n", $violation->getPropertyPath(), $violation->getMessage());
                     return true;
                 },
-                iterator_to_array($violations)
+                \iterator_to_array($violations)
             );
 
             throw new BadRequestHttpException(trim($messages));
@@ -137,12 +131,12 @@ protected function mapObjects(object $baseObject, array $data): void
         foreach ($metadata->getFieldNames() as $field) {
             $fieldName = $inflector->tableize($field);
 
-            if (array_key_exists($fieldName, $data) && is_string($data[$fieldName])) {
+            if (array_key_exists($fieldName, $data) && \is_string($data[$fieldName])) {
                 if (isset($metadata->fieldMappings[$field]['type'])) {
                     if ($metadata->fieldMappings[$field]['type'] == 'datetime') {
-                        $data[$fieldName] = new DateTime($data[$fieldName]);
+                        $data[$fieldName] = new \DateTime($data[$fieldName]);
                     } elseif ($metadata->fieldMappings[$field]['type'] == 'datetime_immutable') {
-                        $data[$fieldName] = new DateTimeImmutable($data[$fieldName]);
+                        $data[$fieldName] = new \DateTimeImmutable($data[$fieldName]);
                     }
                 }
 
diff --git a/src/Controller/Api/SitepackageController.php b/src/Controller/Api/SitepackageController.php
index cfe39df9..c90d04d2 100644
--- a/src/Controller/Api/SitepackageController.php
+++ b/src/Controller/Api/SitepackageController.php
@@ -38,8 +38,6 @@
 use Symfony\Component\Validator\ConstraintViolationInterface;
 use Symfony\Component\Validator\Validation;
 
-use function count;
-
 #[Route(path: '/api/v1/sitepackage', defaults: ['_format' => 'json'])]
 class SitepackageController extends AbstractController
 {
@@ -81,8 +79,8 @@ protected function validateObject(mixed $object): void
             ->enableAttributeMapping()
             ->getValidator();
         $errors = $validator->validate($object);
-        if (count($errors) > 0) {
-            $errorsString = implode("\n", array_map(static fn (ConstraintViolationInterface $x) => $x->getMessage(), (array)$errors));
+        if (\count($errors) > 0) {
+            $errorsString = implode("\n", array_map(static fn(ConstraintViolationInterface $x) => $x->getMessage(), (array)$errors));
             throw new BadRequestHttpException($errorsString);
         }
     }
diff --git a/src/Controller/DefaultController.php b/src/Controller/DefaultController.php
index 5ad5ec09..2c8689b5 100644
--- a/src/Controller/DefaultController.php
+++ b/src/Controller/DefaultController.php
@@ -35,8 +35,6 @@
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Routing\Annotation\Route;
 
-use function array_keys;
-
 /**
  * Regular content and download pages.
  */
@@ -176,7 +174,7 @@ public function composerHelperAjax(Request $request): JsonResponse
                 throw new BadRequestHttpException('Missing or invalid request body.');
             }
 
-            $keys = preg_replace('#^(typo3)-#', '$1/', array_keys($formData));
+            $keys = preg_replace('#^(typo3)-#', '$1/', \array_keys($formData));
             if (!is_array($keys)) {
                 throw new BadRequestHttpException('Missing or invalid request body.');
             }
diff --git a/src/Controller/DownloadController.php b/src/Controller/DownloadController.php
index 571e42d7..17accd31 100644
--- a/src/Controller/DownloadController.php
+++ b/src/Controller/DownloadController.php
@@ -25,14 +25,10 @@
 
 use App\Entity\Release;
 use App\Utility\VersionUtility;
-use InvalidArgumentException;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
-use Throwable;
-
-use function sprintf;
 
 final class DownloadController extends AbstractController
 {
@@ -67,7 +63,7 @@ public function download(
         // Get information about version to download
         try {
             $redirectData = $this->getDownloadRedirect($requestedVersion, $requestedFormat);
-        } catch (Throwable) {
+        } catch (\Throwable) {
             throw $this->createNotFoundException();
         }
 
@@ -106,7 +102,7 @@ private function createEltsVersionResponse(Request $request, Release $release):
     }
 
     /**
-     * @throws InvalidArgumentException
+     * @throws \InvalidArgumentException
      *
      * @return array{
      *   url: string,
@@ -131,7 +127,7 @@ private function getDownloadRedirect(string $versionName, string $format): array
         $content = $this->legacyDataService->getReleaseJson();
         $releases = json_decode($content, true, 512, JSON_THROW_ON_ERROR);
         if (!is_array($releases)) {
-            throw new InvalidArgumentException('Error while decoding the release json.', 1_638_038_670);
+            throw new \InvalidArgumentException('Error while decoding the release json.', 1_638_038_670);
         }
 
         // defaults
@@ -168,7 +164,7 @@ private function getDownloadRedirect(string $versionName, string $format): array
         // named version detection
         if ($versionName === 'stable') {
             if (!isset($releases['latest_stable'])) {
-                throw new InvalidArgumentException('Invalid release json.', 1_638_038_671);
+                throw new \InvalidArgumentException('Invalid release json.', 1_638_038_671);
             }
 
             $versionName = $releases['latest_stable'];
@@ -184,7 +180,7 @@ private function getDownloadRedirect(string $versionName, string $format): array
         if ($isValidVersion && in_array($format, ['tar.gz', 'zip', 'tar.gz.sig', 'zip.sig'], true)) {
             $branchName = (int)$versionParts[0] >= 7 ? $versionParts[0] : $versionParts[0] . '.' . $versionParts[1];
             if (!isset($releases[$branchName])) {
-                throw new InvalidArgumentException('Invalid release json.', 1_638_038_672);
+                throw new \InvalidArgumentException('Invalid release json.', 1_638_038_672);
             }
 
             $branch = $releases[$branchName];
@@ -220,8 +216,8 @@ private function getDownloadRedirect(string $versionName, string $format): array
             }
         }
 
-        throw new InvalidArgumentException(
-            sprintf('No download found for version %s with format %s.', $versionName, $format),
+        throw new \InvalidArgumentException(
+            \sprintf('No download found for version %s with format %s.', $versionName, $format),
             1_660_745_735
         );
     }
diff --git a/src/Controller/LoginController.php b/src/Controller/LoginController.php
index 1e743ebb..d11b5e1e 100644
--- a/src/Controller/LoginController.php
+++ b/src/Controller/LoginController.php
@@ -26,7 +26,6 @@
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
-use Exception;
 
 class LoginController extends AbstractController
 {
@@ -51,6 +50,6 @@ public function index(): Response
     public function logout(): void
     {
         // controller can be blank: it will never be called!
-        throw new Exception("Don't forget to activate logout in security.yaml");
+        throw new \Exception("Don't forget to activate logout in security.yaml");
     }
 }
diff --git a/src/DataFixtures/MajorVersionFixtures.php b/src/DataFixtures/MajorVersionFixtures.php
index a9fa71d7..3baf4073 100644
--- a/src/DataFixtures/MajorVersionFixtures.php
+++ b/src/DataFixtures/MajorVersionFixtures.php
@@ -28,8 +28,6 @@
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Persistence\ObjectManager;
 use Faker\Factory as FakerFactory;
-use DateTimeImmutable;
-use Iterator;
 
 final class MajorVersionFixtures extends Fixture
 {
@@ -90,12 +88,12 @@ public static function getVersions(): array
     }
 
     /**
-     * @return Iterator<MajorVersionFixturesData>
+     * @return \Iterator<MajorVersionFixturesData>
      */
     protected function getData(): iterable
     {
         $faker = FakerFactory::create();
-        $today = new DateTimeImmutable();
+        $today = new \DateTimeImmutable();
 
         yield new MajorVersionFixturesData(
             self::MAJOR_VERSION_SPRINT,
diff --git a/src/DataFixtures/ReleaseFixtures.php b/src/DataFixtures/ReleaseFixtures.php
index 130babb4..20182337 100644
--- a/src/DataFixtures/ReleaseFixtures.php
+++ b/src/DataFixtures/ReleaseFixtures.php
@@ -31,9 +31,6 @@
 use Doctrine\Bundle\FixturesBundle\Fixture;
 use Doctrine\Common\DataFixtures\DependentFixtureInterface;
 use Doctrine\Persistence\ObjectManager;
-use DateTime;
-use DateTimeInterface;
-use RuntimeException;
 
 final class ReleaseFixtures extends Fixture implements DependentFixtureInterface
 {
@@ -86,13 +83,13 @@ protected function generateReleasesForMajorVersion(
             $fakeVersion[1] = $faker->numberBetween($versionData[1], $ltsVersionData[1]);
             $fakeVersion[2] = $i;
             $version = implode('.', $fakeVersion);
-            $date = DateTime::createFromFormat(
-                DateTimeInterface::ATOM,
-                $majorVersion->getReleaseDate()->modify('+' . ($i * 3) . ' months')->format(DateTimeInterface::ATOM)
+            $date = \DateTime::createFromFormat(
+                \DateTimeInterface::ATOM,
+                $majorVersion->getReleaseDate()->modify('+' . ($i * 3) . ' months')->format(\DateTimeInterface::ATOM)
             );
 
             if ($date === false) {
-                throw new RuntimeException('Can not calculate date.', 1_624_354_915);
+                throw new \RuntimeException('Can not calculate date.', 1_624_354_915);
             }
 
             $release = new Release();
diff --git a/src/DataFixtures/RequirementFixtures.php b/src/DataFixtures/RequirementFixtures.php
index 47a6cc01..882e225a 100644
--- a/src/DataFixtures/RequirementFixtures.php
+++ b/src/DataFixtures/RequirementFixtures.php
@@ -29,7 +29,6 @@
 use Doctrine\Bundle\FixturesBundle\Fixture;
 use Doctrine\Common\DataFixtures\DependentFixtureInterface;
 use Doctrine\Persistence\ObjectManager;
-use Iterator;
 
 final class RequirementFixtures extends Fixture implements DependentFixtureInterface
 {
@@ -68,7 +67,7 @@ public function getDependencies(): array
     }
 
     /**
-     * @return Iterator<RequirementFixturesData>
+     * @return \Iterator<RequirementFixturesData>
      */
     protected function getData(): iterable
     {
diff --git a/src/Entity/Embeddables/Package.php b/src/Entity/Embeddables/Package.php
index f964fbc5..9db4755c 100644
--- a/src/Entity/Embeddables/Package.php
+++ b/src/Entity/Embeddables/Package.php
@@ -27,10 +27,9 @@
 use JMS\Serializer\Annotation as Serializer;
 use OpenApi\Annotations as OA;
 use Symfony\Component\Validator\Constraints as Assert;
-use JsonSerializable;
 
 #[ORM\Embeddable]
-class Package implements JsonSerializable
+class Package implements \JsonSerializable
 {
     public function __construct(
         /**
diff --git a/src/Entity/MajorVersion.php b/src/Entity/MajorVersion.php
index ba8b7443..ec9d0094 100644
--- a/src/Entity/MajorVersion.php
+++ b/src/Entity/MajorVersion.php
@@ -31,9 +31,6 @@
 use Doctrine\ORM\Mapping as ORM;
 use JMS\Serializer\Annotation as Serializer;
 use OpenApi\Annotations as OA;
-use JsonSerializable;
-use DateTimeImmutable;
-use Stringable;
 
 /**
  * @OA\Schema(
@@ -43,7 +40,7 @@
  */
 #[ORM\Entity(repositoryClass: MajorVersionRepository::class)]
 #[ORM\EntityListeners([MajorVersionListener::class])]
-class MajorVersion implements JsonSerializable, Stringable
+class MajorVersion implements \JsonSerializable, \Stringable
 {
     /**
      * For example 7 or 8 or 4.3.
@@ -57,7 +54,7 @@ class MajorVersion implements JsonSerializable, Stringable
 
     public static function create(float $version = 0.0): self
     {
-        $now = (new DateTimeImmutable())->setTime(0, 0, 0);
+        $now = (new \DateTimeImmutable())->setTime(0, 0, 0);
         $emptyCollection = new ArrayCollection();
         return new self(
             $version,
@@ -106,7 +103,7 @@ public function __construct(
         #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_IMMUTABLE)]
         #[Serializer\Groups(['data', 'content', 'patch'])]
         #[Serializer\Type("DateTimeImmutable<'Y-m-d\\TH:i:sP'>")]
-        private DateTimeImmutable $releaseDate,
+        private \DateTimeImmutable $releaseDate,
         /**
          * @OA\Property(example="2017-12-12T16:48:22+00:00")
          *
@@ -115,21 +112,21 @@ public function __construct(
         #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_IMMUTABLE, nullable: true)]
         #[Serializer\Groups(['data', 'content', 'patch'])]
         #[Serializer\Type("DateTimeImmutable<'Y-m-d\\TH:i:sP'>")]
-        private ?DateTimeImmutable $regularMaintenanceUntil,
+        private ?\DateTimeImmutable $regularMaintenanceUntil,
         /**
          * @OA\Property(example="2017-12-12T16:48:22+00:00")
          */
         #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_IMMUTABLE, nullable: true)]
         #[Serializer\Groups(['data', 'content', 'patch'])]
         #[Serializer\Type("DateTimeImmutable<'Y-m-d\\TH:i:sP'>")]
-        private ?DateTimeImmutable $maintainedUntil,
+        private ?\DateTimeImmutable $maintainedUntil,
         /**
          * @OA\Property(example="2017-12-12T16:48:22+00:00")
          */
         #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_IMMUTABLE, nullable: true)]
         #[Serializer\Groups(['data', 'content', 'patch'])]
         #[Serializer\Type("DateTimeImmutable<'Y-m-d\\TH:i:sP'>")]
-        private ?DateTimeImmutable $eltsUntil,
+        private ?\DateTimeImmutable $eltsUntil,
         /**
          * @var Collection<int, Requirement>
          */
@@ -220,44 +217,44 @@ public function getDescription(): string
         return $this->description;
     }
 
-    public function setRegularMaintenanceUntil(?DateTimeImmutable $regularMaintenanceUntil): void
+    public function setRegularMaintenanceUntil(?\DateTimeImmutable $regularMaintenanceUntil): void
     {
         $this->regularMaintenanceUntil = $regularMaintenanceUntil;
     }
 
-    public function getRegularMaintenanceUntil(): ?DateTimeImmutable
+    public function getRegularMaintenanceUntil(): ?\DateTimeImmutable
     {
         return $this->regularMaintenanceUntil;
     }
 
-    public function setMaintainedUntil(?DateTimeImmutable $maintainedUntil): void
+    public function setMaintainedUntil(?\DateTimeImmutable $maintainedUntil): void
     {
         $this->maintainedUntil = $maintainedUntil;
     }
 
-    public function getMaintainedUntil(): ?DateTimeImmutable
+    public function getMaintainedUntil(): ?\DateTimeImmutable
     {
         return $this->maintainedUntil;
     }
 
-    public function setEltsUntil(?DateTimeImmutable $eltsUntil): void
+    public function setEltsUntil(?\DateTimeImmutable $eltsUntil): void
     {
         $this->eltsUntil = $eltsUntil;
     }
 
-    public function getEltsUntil(): ?DateTimeImmutable
+    public function getEltsUntil(): ?\DateTimeImmutable
     {
         return $this->eltsUntil ?? (
             $this->getMaintainedUntil() !== null ? $this->getMaintainedUntil()->modify('+3 years') : null
         );
     }
 
-    public function setReleaseDate(DateTimeImmutable $releaseDate): void
+    public function setReleaseDate(\DateTimeImmutable $releaseDate): void
     {
         $this->releaseDate = $releaseDate;
     }
 
-    public function getReleaseDate(): DateTimeImmutable
+    public function getReleaseDate(): \DateTimeImmutable
     {
         return $this->releaseDate;
     }
@@ -267,7 +264,7 @@ public function getLatestRelease(): ?Release
         $array = $this->releases->toArray();
         usort(
             $array,
-            static fn ($a, $b): int => version_compare($b->getVersion(), $a->getVersion())
+            static fn($a, $b): int => version_compare($b->getVersion(), $a->getVersion())
         );
         return $array !== [] ? reset($array) : null;
     }
@@ -305,7 +302,7 @@ public function getLts(): ?float
 
     public function isActive(): bool
     {
-        $dateTime = new DateTimeImmutable();
+        $dateTime = new \DateTimeImmutable();
         if ($this->getMaintainedUntil() === null) {
             return true;
         }
@@ -315,7 +312,7 @@ public function isActive(): bool
 
     public function isElts(): bool
     {
-        $dateTime = new DateTimeImmutable();
+        $dateTime = new \DateTimeImmutable();
         if ($this->getMaintainedUntil() == null) {
             return false;
         }
@@ -381,7 +378,7 @@ public function jsonSerialize(): array
 
         uksort(
             $releaseData,
-            static fn (string $a, string $b): int => version_compare($a, $b)
+            static fn(string $a, string $b): int => version_compare($a, $b)
         );
         $desc = array_reverse($releaseData);
         $latest = $this->getLatestRelease();
diff --git a/src/Entity/Release.php b/src/Entity/Release.php
index d8245732..71334cb6 100644
--- a/src/Entity/Release.php
+++ b/src/Entity/Release.php
@@ -32,12 +32,6 @@
 use JMS\Serializer\Annotation as Serializer;
 use OpenApi\Annotations as OA;
 use Symfony\Component\Validator\Constraints as Assert;
-use JsonSerializable;
-use DateTimeInterface;
-use InvalidArgumentException;
-use DateTimeImmutable;
-use DateTime;
-use Stringable;
 
 /**
  * @OA\Schema(
@@ -47,7 +41,7 @@
  */
 #[ORM\Entity(repositoryClass: ReleaseRepository::class)]
 #[ORM\EntityListeners([ReleaseListener::class])]
-class Release implements JsonSerializable, Stringable
+class Release implements \JsonSerializable, \Stringable
 {
     /**
      * Version in a semver/version_compare compatible format.
@@ -65,12 +59,12 @@ class Release implements JsonSerializable, Stringable
     /**
      * @OA\Property(example="2017-12-12T16:48:22+00:00")
      *
-     * @var DateTime|DateTimeImmutable
+     * @var \DateTime|\DateTimeImmutable
      */
     #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_MUTABLE)]
     #[Serializer\Groups(['data', 'content'])]
     #[Serializer\Type("DateTime<'Y-m-d\\TH:i:sP'>")]
-    private DateTimeInterface $date;
+    private \DateTimeInterface $date;
 
     #[Assert\Choice(callback: [ReleaseTypeEnum::class, 'getAvailableOptions'])]
     #[ORM\Column(type: \Doctrine\DBAL\Types\Types::STRING)]
@@ -129,15 +123,15 @@ public function getReleaseNotes(): ReleaseNotes
         return $this->releaseNotes;
     }
 
-    public function setDate(DateTime|DateTimeImmutable $date): void
+    public function setDate(\DateTime|\DateTimeImmutable $date): void
     {
         $this->date = $date;
     }
 
     /**
-     * @return DateTime|DateTimeImmutable
+     * @return \DateTime|\DateTimeImmutable
      */
-    public function getDate(): DateTimeInterface
+    public function getDate(): \DateTimeInterface
     {
         return $this->date;
     }
@@ -175,7 +169,7 @@ public function setMajorVersion(MajorVersion $majorVersion): void
     public function setType(string $type): void
     {
         if (!in_array($type, ReleaseTypeEnum::getAvailableOptions(), true)) {
-            throw new InvalidArgumentException('Invalid type');
+            throw new \InvalidArgumentException('Invalid type');
         }
 
         $this->type = $type;
diff --git a/src/Entity/Requirement.php b/src/Entity/Requirement.php
index 47cd16b3..70c8e83f 100644
--- a/src/Entity/Requirement.php
+++ b/src/Entity/Requirement.php
@@ -30,11 +30,6 @@
 use JMS\Serializer\Annotation as Serializer;
 use OpenApi\Annotations as OA;
 use Symfony\Component\Validator\Constraints as Assert;
-use JsonSerializable;
-use InvalidArgumentException;
-use Stringable;
-
-use function ucfirst;
 
 /**
  * @OA\Schema(
@@ -45,9 +40,9 @@
 #[ORM\Entity(repositoryClass: RequirementRepository::class)]
 #[ORM\EntityListeners([RequirementListener::class])]
 #[ORM\UniqueConstraint(columns: ['version', 'category', 'name'])]
-class Requirement implements JsonSerializable, Stringable
+class Requirement implements \JsonSerializable, \Stringable
 {
-    public static function create(MajorVersion $version = null): self
+    public static function create(?MajorVersion $version = null): self
     {
         return new self(
             null,
@@ -110,7 +105,7 @@ public function getVersion(): ?MajorVersion
     public function setCategory(string $category): void
     {
         if (!in_array($category, RequirementCategoryEnum::getAvailableOptions(), true)) {
-            throw new InvalidArgumentException('Invalid category');
+            throw new \InvalidArgumentException('Invalid category');
         }
 
         $this->category = $category;
@@ -142,7 +137,7 @@ public function getTitle(): string
             'mariadb' => 'MariaDB',
             'sqlite' => 'SQLite',
             'ram' => 'RAM',
-            default => ucfirst($this->getName()),
+            default => \ucfirst($this->getName()),
         };
     }
 
@@ -176,7 +171,7 @@ public function jsonSerialize(): array
 
     public function __toString(): string
     {
-        $result = ucfirst($this->getCategory()) . ' / ' . $this->getTitle();
+        $result = \ucfirst($this->getCategory()) . ' / ' . $this->getTitle();
 
         if (($min = $this->getMin()) !== \null) {
             $result .= ': ' . $min;
diff --git a/src/Entity/Sitepackage.php b/src/Entity/Sitepackage.php
index e25b1a60..e3b06272 100644
--- a/src/Entity/Sitepackage.php
+++ b/src/Entity/Sitepackage.php
@@ -27,12 +27,11 @@
 use JMS\Serializer\Annotation as Serializer;
 use OpenApi\Attributes as OA;
 use Symfony\Component\Validator\Constraints as Assert;
-use JsonSerializable;
 
 /**
  * Sitepackage.
  */
-class Sitepackage implements JsonSerializable
+class Sitepackage implements \JsonSerializable
 {
     #[Assert\NotBlank]
     #[Assert\Choice(['bootstrap_package', 'fluid_styled_content'])]
diff --git a/src/Entity/Sitepackage/Author.php b/src/Entity/Sitepackage/Author.php
index 8282cb48..bb59ff33 100644
--- a/src/Entity/Sitepackage/Author.php
+++ b/src/Entity/Sitepackage/Author.php
@@ -26,12 +26,11 @@
 use JMS\Serializer\Annotation as Serializer;
 use OpenApi\Attributes as OA;
 use Symfony\Component\Validator\Constraints as Assert;
-use JsonSerializable;
 
 /**
  * Author.
  */
-class Author implements JsonSerializable
+class Author implements \JsonSerializable
 {
     #[Assert\NotBlank(message: "Please enter the authors' name.")]
     #[Assert\Length(min: 3)]
diff --git a/src/Model/SatisJson.php b/src/Model/SatisJson.php
index b11b4b9f..89ab4915 100644
--- a/src/Model/SatisJson.php
+++ b/src/Model/SatisJson.php
@@ -23,15 +23,10 @@
 
 namespace App\Model;
 
-use Stringable;
-use InvalidArgumentException;
-
-use function json_encode;
-
 /**
  * @codeCoverageIgnore
  */
-class SatisJson implements Stringable
+class SatisJson implements \Stringable
 {
     /**
      * @var array{
@@ -52,7 +47,7 @@ class SatisJson implements Stringable
     public function __construct($name)
     {
         if (!is_string($name)) {
-            throw new InvalidArgumentException(sprintf(
+            throw new \InvalidArgumentException(sprintf(
                 'Argument "$name" must be of type "string", "%s" given',
                 gettype($name)
             ));
@@ -121,6 +116,6 @@ public function __toString(): string
             unset($this->data['require']);
         }
 
-        return (string)json_encode($this->data, JSON_PRETTY_PRINT);
+        return (string)\json_encode($this->data, JSON_PRETTY_PRINT);
     }
 }
diff --git a/src/Repository/MajorVersionRepository.php b/src/Repository/MajorVersionRepository.php
index 24efffd0..e333ff46 100644
--- a/src/Repository/MajorVersionRepository.php
+++ b/src/Repository/MajorVersionRepository.php
@@ -28,10 +28,6 @@
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
 use Doctrine\Common\Collections\Criteria;
 use Doctrine\Persistence\ManagerRegistry;
-use RuntimeException;
-use DateTimeImmutable;
-
-use function in_array;
 
 /**
  * @extends ServiceEntityRepository<MajorVersion>
@@ -70,13 +66,13 @@ public function findVersion(string $version): ?MajorVersion
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      *
      * @return array<MajorVersion>
      */
     public function findAllActive(): array
     {
-        $date = (new DateTimeImmutable())->format('Y-m-d');
+        $date = (new \DateTimeImmutable())->format('Y-m-d');
         $qb = $this->createQueryBuilder('m');
         $qb->where(
             $qb->expr()->orX(
@@ -92,20 +88,20 @@ public function findAllActive(): array
         $qb->addOrderBy('m.version', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_065);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_065);
         }
 
         return $this->removeVersionsWithoutReleases($result);
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      *
      * @return array<MajorVersion>
      */
     public function findAllActiveCommunity(): array
     {
-        $date = (new DateTimeImmutable())->format('Y-m-d');
+        $date = (new \DateTimeImmutable())->format('Y-m-d');
         $qb = $this->createQueryBuilder('m');
         $qb->where(
             $qb->expr()->orX(
@@ -117,20 +113,20 @@ public function findAllActiveCommunity(): array
         $qb->addOrderBy('m.version', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_066);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_066);
         }
 
         return $this->removeVersionsWithoutReleases($result);
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      *
      * @return array<MajorVersion>
      */
     public function findAllActiveElts(): array
     {
-        $date = (new DateTimeImmutable())->format('Y-m-d');
+        $date = (new \DateTimeImmutable())->format('Y-m-d');
         $qb = $this->createQueryBuilder('m');
         $qb->where(
             $qb->expr()->andX(
@@ -142,7 +138,7 @@ public function findAllActiveElts(): array
         $qb->addOrderBy('m.version', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_067);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_067);
         }
 
         return $result;
@@ -172,7 +168,7 @@ public function findAllGroupedByMajor(): array
 
         uksort(
             $data,
-            static fn (string $a, string $b): int => version_compare($a, $b)
+            static fn(string $a, string $b): int => version_compare($a, $b)
         );
         return array_reverse($data);
     }
@@ -190,13 +186,13 @@ public function findCommunityVersionsGroupedByMajor(): array
 
         uksort(
             $data,
-            static fn (string $a, string $b): int => version_compare($a, $b)
+            static fn(string $a, string $b): int => version_compare($a, $b)
         );
         return array_reverse($data);
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      *
      * @return array<MajorVersion>
      */
@@ -210,14 +206,14 @@ public function findAllComposerSupported(): array
         $qb->addOrderBy('m.version', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_068);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_068);
         }
 
         return $result;
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      */
     public function findLatestLtsComposerSupported(): ?MajorVersion
     {
@@ -232,14 +228,14 @@ public function findLatestLtsComposerSupported(): ?MajorVersion
         $qb->setMaxResults(1)->orderBy('m.version', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_069);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_069);
         }
 
         return array_pop($result);
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      *
      * @return array{latest_stable: string, latest_old_stable: string|null}
      */
@@ -249,13 +245,13 @@ private function findStableReleases(): array
         $qb->setMaxResults(2)->orderBy('m.version', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_070);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_070);
         }
 
         $result = $this->removeVersionsWithoutReleases($result);
 
         if (!($latestMajor = reset($result)) instanceof MajorVersion) {
-            throw new RuntimeException('No version found.', 1_638_022_071);
+            throw new \RuntimeException('No version found.', 1_638_022_071);
         }
 
         $releases = $this->majorVersionDescending($latestMajor);
@@ -268,13 +264,13 @@ private function findStableReleases(): array
     }
 
     /**
-     * @throws RuntimeException
+     * @throws \RuntimeException
      *
      * @return array{latest_lts: string, latest_old_lts: string}
      */
     private function findLtsReleases(): array
     {
-        $date = (new DateTimeImmutable())->format('Y-m-d');
+        $date = (new \DateTimeImmutable())->format('Y-m-d');
         $qb = $this->createQueryBuilder('m');
         $qb->setMaxResults(2)
             ->where(
@@ -286,7 +282,7 @@ private function findLtsReleases(): array
         $qb->orderBy('m.maintainedUntil', Criteria::DESC);
 
         if (!is_array($result = $qb->getQuery()->execute())) {
-            throw new RuntimeException('Query not returned an array type.', 1_638_022_071);
+            throw new \RuntimeException('Query not returned an array type.', 1_638_022_071);
         }
 
         $latestLts = array_shift($result);
@@ -313,7 +309,7 @@ private function formatVersion(float|int|string $version): string
     {
         $version = (string)$version;
         if (!str_contains($version, '.')) {
-            if (in_array((int)$version, [7, 8, 9, 10, 11, 12, 13], true)) {
+            if (\in_array((int)$version, [7, 8, 9, 10, 11, 12, 13], true)) {
                 $version .= '.0000';
             } else {
                 $version .= '.0';
@@ -326,7 +322,7 @@ private function formatVersion(float|int|string $version): string
     private function removeEltsReleases(MajorVersion $version): MajorVersion
     {
         $version->setReleases($version->getReleases()->filter(
-            static fn (Release $release): bool => !$release->isElts()
+            static fn(Release $release): bool => !$release->isElts()
         ));
 
         return $version;
@@ -341,7 +337,7 @@ private function majorVersionDescending(MajorVersion $version): array
 
         usort(
             $releases,
-            static fn (Release $a, Release $b): int => version_compare($b->getVersion(), $a->getVersion())
+            static fn(Release $a, Release $b): int => version_compare($b->getVersion(), $a->getVersion())
         );
 
         return $releases;
diff --git a/src/Service/CacheWarmupService.php b/src/Service/CacheWarmupService.php
index 1aa0e004..b46fe58f 100644
--- a/src/Service/CacheWarmupService.php
+++ b/src/Service/CacheWarmupService.php
@@ -33,7 +33,6 @@
 use Psr\Log\LoggerInterface;
 use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
 use Symfony\Component\Routing\RouterInterface;
-use Exception;
 
 class CacheWarmupService implements CacheWarmerInterface
 {
@@ -156,7 +155,7 @@ private function warmUpLoopWithVersions(array $routes, array $versions): void
 
                 try {
                     $promise->wait();
-                } catch (Exception $exception) {
+                } catch (\Exception $exception) {
                     $this->logger->warning($exception->getMessage(), $exception->getTrace());
                 }
             }
diff --git a/src/Service/ComposerPackagesService.php b/src/Service/ComposerPackagesService.php
index d0cac64f..77c1cf2b 100644
--- a/src/Service/ComposerPackagesService.php
+++ b/src/Service/ComposerPackagesService.php
@@ -32,12 +32,6 @@
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormInterface;
-use RuntimeException;
-
-use function is_null;
-use function ltrim;
-use function preg_match;
-use function sprintf;
 
 final class ComposerPackagesService
 {
@@ -759,12 +753,12 @@ public function buildForm(FormBuilderInterface $builder): FormInterface
     {
         $majorVersion = $this->majorVersions->findLatestLtsComposerSupported();
         if (!$majorVersion instanceof MajorVersion) {
-            throw new RuntimeException('No LTS release with Composer support found.', 1_624_353_394);
+            throw new \RuntimeException('No LTS release with Composer support found.', 1_624_353_394);
         }
 
         $release = $majorVersion->getLatestRelease();
         if (!$release instanceof Release) {
-            throw new RuntimeException('No release found.', 1_624_353_494);
+            throw new \RuntimeException('No release found.', 1_624_353_494);
         }
 
         $versionChoices = [
@@ -789,7 +783,7 @@ public function buildForm(FormBuilderInterface $builder): FormInterface
 
         foreach ($versions as $version) {
             if (
-                $version->getLatestRelease() instanceof Release && preg_match(
+                $version->getLatestRelease() instanceof Release && \preg_match(
                     '#^(\d+)\.(\d+)\.(\d+)#',
                     $version->getLatestRelease()->getVersion(),
                     $matches
@@ -798,7 +792,7 @@ public function buildForm(FormBuilderInterface $builder): FormInterface
                 $nextMinor = $matches[1] . '.' . (((int)$matches[2]) + 1);
                 $nextPatch = $matches[1] . '.' . $matches[2] . '.' . (((int)$matches[3]) + 1);
 
-                if (is_null($version->getLatestRelease()->getMajorVersion()->getLts())) {
+                if (\is_null($version->getLatestRelease()->getMajorVersion()->getLts())) {
                     $versionChoices['choices'][self::SPECIAL_VERSIONS_GROUP]
                         [$version->getTitle() . ' - next minor release (' . $nextMinor . ')'] =
                         $this->getComposerVersionConstraint($nextMinor, true);
@@ -847,7 +841,7 @@ public function getBundles(): array
         $sanitizedBundles = [];
         foreach (self::BUNDLES as $bundleName => $packages) {
             $sanitizedBundles[$bundleName] = Utils::jsonEncode(
-                array_map(static fn ($name): string => str_replace('/', '-', $name), $packages)
+                array_map(static fn($name): string => str_replace('/', '-', $name), $packages)
             );
         }
 
@@ -863,21 +857,21 @@ public function cleanPackagesForVersions(array $packages): array
     {
         $stability = 'stable';
 
-        if (is_string($version = $packages['typo3_version']) && preg_match('#^\^(\d+)#', $version, $matches) > 0) {
+        if (is_string($version = $packages['typo3_version']) && \preg_match('#^\^(\d+)#', $version, $matches) > 0) {
             $stability = VersionParser::parseStability($version);
             $majorVersion = (int)$matches[1];
         } else {
             $composerVersions = $this->majorVersions->findAllComposerSupported();
             if ($composerVersions === []) {
-                throw new RuntimeException('No release found.', 1_624_353_639);
+                throw new \RuntimeException('No release found.', 1_624_353_639);
             }
 
             $release = $composerVersions[0]->getLatestRelease();
             if (!$release instanceof Release) {
-                throw new RuntimeException('No release found.', 1_624_353_801);
+                throw new \RuntimeException('No release found.', 1_624_353_801);
             }
 
-            preg_match('#^\d+#', $release->getVersion(), $matches);
+            \preg_match('#^\d+#', $release->getVersion(), $matches);
             $majorVersion = (int)$matches[0];
         }
 
@@ -894,7 +888,7 @@ public function cleanPackagesForVersions(array $packages): array
 
             if (array_key_exists($packageName, $packages) && $packages[$packageName] === true) {
                 if ($version !== '*' && $packageName === 'typo3/minimal') {
-                    $packageVersion = sprintf('^%s', $majorVersion);
+                    $packageVersion = \sprintf('^%s', $majorVersion);
                     if ($stability !== 'stable') {
                         $packageVersion .= '@' . $stability;
                     }
@@ -903,14 +897,14 @@ public function cleanPackagesForVersions(array $packages): array
                 }
 
                 if ($version === '') {
-                    $composerPackages .= sprintf(' "%s"', $packageName);
+                    $composerPackages .= \sprintf(' "%s"', $packageName);
                 } else {
-                    $composerPackages .= sprintf(' "%s:%s"', $packageName, $packageVersion);
+                    $composerPackages .= \sprintf(' "%s:%s"', $packageName, $packageVersion);
                 }
             }
         }
 
-        $packages['composer_packages'] = ltrim($composerPackages);
+        $packages['composer_packages'] = \ltrim($composerPackages);
 
         return $packages;
     }
@@ -933,7 +927,7 @@ private function getComposerVersionConstraint(string $version, bool $development
     {
         if ($development) {
             $result = '^' . $version . '@dev';
-        } elseif (preg_match('#^\d+\.\d+#', $version, $matches) > 0) {
+        } elseif (\preg_match('#^\d+\.\d+#', $version, $matches) > 0) {
             $result = '^' . $matches[0];
         } else {
             $result = '';
diff --git a/src/Service/SitepackageGenerator.php b/src/Service/SitepackageGenerator.php
index 7d61a605..5da216c0 100644
--- a/src/Service/SitepackageGenerator.php
+++ b/src/Service/SitepackageGenerator.php
@@ -28,8 +28,6 @@
 use Symfony\Component\HttpKernel\KernelInterface;
 use Twig\Environment;
 use Twig\Loader\ArrayLoader;
-use ZipArchive;
-use RuntimeException;
 
 class SitepackageGenerator
 {
@@ -49,13 +47,13 @@ public function create(Sitepackage $package): void
         $sourceDir = $this->kernel->getProjectDir() . '/resources/packages/' . $package->getBasePackage() . '/' . (string)$package->getTypo3Version() . '/src/';
         $tempFileName = tempnam(sys_get_temp_dir(), $this->filename);
         if ($tempFileName === false) {
-            throw new RuntimeException(sprintf('Cannot create temporary name for %s/%s' . sys_get_temp_dir(), $this->filename), 1732123721);
+            throw new \RuntimeException(sprintf('Cannot create temporary name for %s/%s' . sys_get_temp_dir(), $this->filename), 1732123721);
         }
         $this->zipPath = $tempFileName;
         $fileList = FileUtility::listDirectory($sourceDir);
 
-        $zipFile = new ZipArchive();
-        $opened = $zipFile->open($this->zipPath, ZipArchive::CREATE);
+        $zipFile = new \ZipArchive();
+        $opened = $zipFile->open($this->zipPath, \ZipArchive::CREATE);
         if ($opened === true) {
             foreach ($fileList as $file) {
                 if ($file !== $this->zipPath && file_exists($file)) {
diff --git a/src/Twig/Extension/ReleaseNotesExtension.php b/src/Twig/Extension/ReleaseNotesExtension.php
index 001a4b9d..f236fe29 100644
--- a/src/Twig/Extension/ReleaseNotesExtension.php
+++ b/src/Twig/Extension/ReleaseNotesExtension.php
@@ -35,7 +35,7 @@ public function getFilters(): array
     {
         return [
             // format filters
-            new TwigFilter('removeWikiLink', fn (string $data): ?string => $this->removeWikiLink($data)),
+            new TwigFilter('removeWikiLink', fn(string $data): ?string => $this->removeWikiLink($data)),
         ];
     }
 
diff --git a/src/Twig/Extension/RequirementExtension.php b/src/Twig/Extension/RequirementExtension.php
index 65ee9b08..6549e971 100644
--- a/src/Twig/Extension/RequirementExtension.php
+++ b/src/Twig/Extension/RequirementExtension.php
@@ -30,15 +30,6 @@
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFilter;
 
-use function array_key_exists;
-use function implode;
-use function in_array;
-use function sprintf;
-use function substr;
-use function str_ends_with;
-
-use const null;
-
 class RequirementExtension extends AbstractExtension
 {
     /**
@@ -49,11 +40,11 @@ public function getFilters(): array
         return [
             new TwigFilter(
                 'prepareRequirements',
-                fn (Collection $requirements): array => $this->prepareRequirements($requirements)
+                fn(Collection $requirements): array => $this->prepareRequirements($requirements)
             ),
             new TwigFilter(
                 'prepareRequirementsShort',
-                fn (Collection $requirements): array => $this->prepareRequirementsShort($requirements)
+                fn(Collection $requirements): array => $this->prepareRequirementsShort($requirements)
             ),
         ];
     }
@@ -87,7 +78,7 @@ public function prepareRequirementsShort(Collection $requirements): array
 
         foreach ($categories as $category => $categoryRequirements) {
             if (
-                array_key_exists(
+                \array_key_exists(
                     $category,
                     $result
                 )
@@ -120,10 +111,10 @@ public function prepareRequirementsShort(Collection $requirements): array
                                 }
                             }
 
-                            $result[$requirement->getCategory()] = sprintf(
+                            $result[$requirement->getCategory()] = \sprintf(
                                 '%s %s',
                                 $requirement->getTitle(),
-                                implode(', ', $supportedVersions)
+                                \implode(', ', $supportedVersions)
                             );
                             break;
 
@@ -131,12 +122,12 @@ public function prepareRequirementsShort(Collection $requirements): array
                             $result[$requirement->getCategory()] .= $result[$requirement->getCategory()] !== '' ? ' / ' : '';
                             $result[$requirement->getCategory()] .= $requirement->getTitle();
 
-                            if ($requirement->getMin() !== null) {
+                            if ($requirement->getMin() !== \null) {
                                 $version = VersionUtility::normalize($requirement->getMin(), 3) ?? '';
-                                if (str_ends_with($version, '.0')) {
-                                    $version = substr($version, 0, -2);
+                                if (\str_ends_with($version, '.0')) {
+                                    $version = \substr($version, 0, -2);
                                 }
-                                $result[$requirement->getCategory()] .= sprintf(
+                                $result[$requirement->getCategory()] .= \sprintf(
                                     '&nbsp;%s+',
                                     $version
                                 );
@@ -201,7 +192,7 @@ private function normalizeVersionHelper(array &$requirements): void
     {
         foreach ($requirements as &$requirement) {
             if (
-                in_array(
+                \in_array(
                     $requirement->getCategory(),
                     [
                         RequirementCategoryEnum::OPTION_PHP,
@@ -231,6 +222,6 @@ private function normalizeVersionHelper(array &$requirements): void
      */
     private function sortByTitleHelper(array &$data): void
     {
-        usort($data, static fn ($a, $b): int => strcasecmp($a->getTitle(), $b->getTitle()));
+        usort($data, static fn($a, $b): int => strcasecmp($a->getTitle(), $b->getTitle()));
     }
 }
diff --git a/src/Twig/Filter/ChangeHighlighter.php b/src/Twig/Filter/ChangeHighlighter.php
index 79f30aa8..c34fe1aa 100644
--- a/src/Twig/Filter/ChangeHighlighter.php
+++ b/src/Twig/Filter/ChangeHighlighter.php
@@ -36,7 +36,7 @@ public function getFilters(): array
         return [
             new TwigFilter(
                 'changehighlighter',
-                fn (string $changeList): ?string => $this->highlightChanges($changeList)
+                fn(string $changeList): ?string => $this->highlightChanges($changeList)
             ),
         ];
     }
diff --git a/src/Twig/Filter/CommitLinker.php b/src/Twig/Filter/CommitLinker.php
index 72c5a6d9..2532df98 100644
--- a/src/Twig/Filter/CommitLinker.php
+++ b/src/Twig/Filter/CommitLinker.php
@@ -34,7 +34,7 @@ class CommitLinker extends AbstractExtension
     public function getFilters(): array
     {
         return [
-            new TwigFilter('commitlinker', fn (string $changeList): ?string => $this->linkCommits($changeList)),
+            new TwigFilter('commitlinker', fn(string $changeList): ?string => $this->linkCommits($changeList)),
         ];
     }
 
@@ -44,7 +44,7 @@ public function linkCommits(string $changeList): ?string
 
         return preg_replace_callback(
             $pattern,
-            static fn (array $matches): string => sprintf(
+            static fn(array $matches): string => sprintf(
                 '<a href="https://github.com/typo3/typo3/commit/%1$s" target="_blank" rel="noopener">%1$s</a>',
                 $matches['commit']
             ),
diff --git a/src/Twig/Filter/Parsedown.php b/src/Twig/Filter/Parsedown.php
index 62c648fe..6aa1a665 100644
--- a/src/Twig/Filter/Parsedown.php
+++ b/src/Twig/Filter/Parsedown.php
@@ -34,7 +34,7 @@ class Parsedown extends AbstractExtension
     public function getFilters(): array
     {
         return [
-            new TwigFilter('parsedown', fn (string $markdown): string => $this->parse($markdown)),
+            new TwigFilter('parsedown', fn(string $markdown): string => $this->parse($markdown)),
         ];
     }
 
diff --git a/src/Twig/Filter/SortByVersion.php b/src/Twig/Filter/SortByVersion.php
index b397a869..18801619 100644
--- a/src/Twig/Filter/SortByVersion.php
+++ b/src/Twig/Filter/SortByVersion.php
@@ -36,7 +36,7 @@ class SortByVersion extends AbstractExtension
     public function getFilters(): array
     {
         return [
-            new TwigFilter('sortByVersion', fn ($releases): array => $this->sort($releases)),
+            new TwigFilter('sortByVersion', fn($releases): array => $this->sort($releases)),
         ];
     }
 
@@ -48,7 +48,7 @@ public function getFilters(): array
     public function sort(Collection $releases): array
     {
         $array = $releases->toArray();
-        usort($array, static fn ($a, $b): int => version_compare($b->getVersion(), $a->getVersion()));
+        usort($array, static fn($a, $b): int => version_compare($b->getVersion(), $a->getVersion()));
 
         return $array;
     }
diff --git a/tests/Functional/AbstractCase.php b/tests/Functional/AbstractCase.php
index 2312d798..31c84172 100644
--- a/tests/Functional/AbstractCase.php
+++ b/tests/Functional/AbstractCase.php
@@ -28,7 +28,6 @@
 use Doctrine\Common\DataFixtures\Purger\ORMPurger;
 use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\Persistence\ManagerRegistry;
-use LogicException;
 use Symfony\Bridge\Doctrine\DataFixtures\ContainerAwareLoader;
 use Symfony\Bundle\FrameworkBundle\KernelBrowser;
 use Symfony\Component\Panther\PantherTestCase;
@@ -53,7 +52,7 @@ protected function logIn(): void
     {
         $userProvider = static::getContainer()->get(UserProviderInterface::class);
         if (!$userProvider instanceof UserProviderInterface) {
-            throw new LogicException('UserProvider instance is not a UserProviderInterface');
+            throw new \LogicException('UserProvider instance is not a UserProviderInterface');
         }
 
         $testUser = $userProvider->loadUserByIdentifier('test-user');
@@ -80,12 +79,12 @@ private function getFixtureExecutor(): ORMExecutor
         if ($this->fixtureExecutor === null) {
             $managerRegistry = static::getContainer()->get('doctrine');
             if (!$managerRegistry instanceof ManagerRegistry) {
-                throw new LogicException('Doctrine instance is not a ManagerRegistry');
+                throw new \LogicException('Doctrine instance is not a ManagerRegistry');
             }
 
             $entityManager = $managerRegistry->getManager();
             if (!$entityManager instanceof EntityManagerInterface) {
-                throw new LogicException('Manager instance is not a EntityManagerInterface');
+                throw new \LogicException('Manager instance is not a EntityManagerInterface');
             }
 
             $this->fixtureExecutor = new ORMExecutor($entityManager, new ORMPurger($entityManager));
diff --git a/tests/Functional/Controller/Api/ApiCase.php b/tests/Functional/Controller/Api/ApiCase.php
index ee569c2a..15594483 100644
--- a/tests/Functional/Controller/Api/ApiCase.php
+++ b/tests/Functional/Controller/Api/ApiCase.php
@@ -24,7 +24,6 @@
 namespace App\Tests\Functional\Controller\Api;
 
 use App\Tests\Functional\AbstractCase;
-use LogicException;
 use Symfony\Component\HttpFoundation\Response;
 
 class ApiCase extends AbstractCase
@@ -34,7 +33,7 @@ private function loadFixture(string $fileName): string
         $contents = file_get_contents($fileName);
 
         if ($contents === false) {
-            throw new LogicException(sprintf('Fixture "%s" not accessible', $fileName));
+            throw new \LogicException(sprintf('Fixture "%s" not accessible', $fileName));
         }
 
         return $contents;
diff --git a/tests/Functional/Controller/Web/DownloadControllerTest.php b/tests/Functional/Controller/Web/DownloadControllerTest.php
index 072138cf..792dca9e 100644
--- a/tests/Functional/Controller/Web/DownloadControllerTest.php
+++ b/tests/Functional/Controller/Web/DownloadControllerTest.php
@@ -23,11 +23,11 @@
 
 namespace App\Tests\Functional\Controller\Web;
 
+use App\Tests\Functional\AbstractCase;
 use App\Tests\Functional\Fixtures\MajorVersionFixtures;
 use App\Tests\Functional\Fixtures\ReleaseFixtures;
-use App\Tests\Functional\AbstractCase;
-use Symfony\Component\HttpFoundation\Response;
 use Iterator;
+use Symfony\Component\HttpFoundation\Response;
 
 class DownloadControllerTest extends AbstractCase
 {
@@ -66,7 +66,7 @@ public function webDownloadVersion(
      *   expectedCode: int
      * }>
      */
-    public function webDownloadVersionDataProvider(): Iterator
+    public function webDownloadVersionDataProvider(): \Iterator
     {
         yield 'Sprint version' => [
             'requestVersion' => '10.0.0',
diff --git a/tests/Functional/Controller/Web/JsonControllerTest.php b/tests/Functional/Controller/Web/JsonControllerTest.php
index 47f389b7..0e87da5d 100644
--- a/tests/Functional/Controller/Web/JsonControllerTest.php
+++ b/tests/Functional/Controller/Web/JsonControllerTest.php
@@ -26,11 +26,8 @@
 use App\Tests\Functional\AbstractCase;
 use App\Tests\Functional\Fixtures\MajorVersionFixtures;
 use App\Tests\Functional\Fixtures\ReleaseFixtures;
-use RuntimeException;
 use Symfony\Component\HttpFoundation\Response;
 
-use function is_array;
-
 class JsonControllerTest extends AbstractCase
 {
     protected function setUp(): void
@@ -50,11 +47,11 @@ public function index(): void
         $response = $this->client->getResponse();
 
         if (($json = $response->getContent()) === false) {
-            throw new RuntimeException('Error no response content.', 1_657_642_832);
+            throw new \RuntimeException('Error no response content.', 1_657_642_832);
         }
 
-        if (!is_array($content = json_decode($json, true, 512, JSON_THROW_ON_ERROR))) {
-            throw new RuntimeException('Error array expected.', 1_657_642_833);
+        if (!\is_array($content = json_decode($json, true, 512, JSON_THROW_ON_ERROR))) {
+            throw new \RuntimeException('Error array expected.', 1_657_642_833);
         }
 
         self::assertSame(Response::HTTP_OK, $response->getStatusCode());
diff --git a/tests/Functional/DatabasePrimer.php b/tests/Functional/DatabasePrimer.php
index 05ada4a2..db9cbed4 100644
--- a/tests/Functional/DatabasePrimer.php
+++ b/tests/Functional/DatabasePrimer.php
@@ -26,7 +26,6 @@
 use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\ORM\Tools\SchemaTool;
 use Symfony\Component\HttpKernel\KernelInterface;
-use LogicException;
 
 /**
  * Class DatabasePrimer.
@@ -39,13 +38,13 @@ public static function prime(KernelInterface $kernel): void
     {
         // Make sure we are in the test environment
         if ($kernel->getEnvironment() !== 'test') {
-            throw new LogicException('Primer must be executed in the test environment');
+            throw new \LogicException('Primer must be executed in the test environment');
         }
 
         // Get the entity manager from the service container
         $entityManager = $kernel->getContainer()->get('doctrine.orm.entity_manager');
         if (!$entityManager instanceof EntityManagerInterface) {
-            throw new LogicException('EntityManager could not be retrieved');
+            throw new \LogicException('EntityManager could not be retrieved');
         }
 
         // Recreate the database
diff --git a/tests/Functional/Fixtures/MajorVersionFixtures.php b/tests/Functional/Fixtures/MajorVersionFixtures.php
index 335fb397..9aed3ff8 100644
--- a/tests/Functional/Fixtures/MajorVersionFixtures.php
+++ b/tests/Functional/Fixtures/MajorVersionFixtures.php
@@ -27,8 +27,6 @@
 use Doctrine\Bundle\FixturesBundle\Fixture;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Persistence\ObjectManager;
-use DateTimeImmutable;
-use Iterator;
 
 final class MajorVersionFixtures extends Fixture
 {
@@ -77,11 +75,11 @@ public static function getVersions(): array
     }
 
     /**
-     * @return Iterator<MajorVersionFixturesData>
+     * @return \Iterator<MajorVersionFixturesData>
      */
     protected function getData(): iterable
     {
-        $today = new DateTimeImmutable();
+        $today = new \DateTimeImmutable();
 
         yield new MajorVersionFixturesData(
             self::MAJOR_VERSION_SPRINT,
diff --git a/tests/Functional/Fixtures/ReleaseFixtures.php b/tests/Functional/Fixtures/ReleaseFixtures.php
index 96fe1b4f..f1fb33d2 100644
--- a/tests/Functional/Fixtures/ReleaseFixtures.php
+++ b/tests/Functional/Fixtures/ReleaseFixtures.php
@@ -29,9 +29,6 @@
 use Doctrine\Bundle\FixturesBundle\Fixture;
 use Doctrine\Common\DataFixtures\DependentFixtureInterface;
 use Doctrine\Persistence\ObjectManager;
-use DateTime;
-use DateTimeInterface;
-use RuntimeException;
 
 final class ReleaseFixtures extends Fixture implements DependentFixtureInterface
 {
@@ -78,13 +75,13 @@ protected function generateReleasesForMajorVersion(
             $fakeVersion = $ltsVersionData;
             $fakeVersion[2] = $i;
             $version = implode('.', $fakeVersion);
-            $date = DateTime::createFromFormat(
-                DateTimeInterface::ATOM,
-                $majorVersion->getReleaseDate()->modify('+' . ($i * 2) . ' months')->format(DateTimeInterface::ATOM)
+            $date = \DateTime::createFromFormat(
+                \DateTimeInterface::ATOM,
+                $majorVersion->getReleaseDate()->modify('+' . ($i * 2) . ' months')->format(\DateTimeInterface::ATOM)
             );
 
             if ($date === false) {
-                throw new RuntimeException('Can not calculate date.', 1_624_354_915);
+                throw new \RuntimeException('Can not calculate date.', 1_624_354_915);
             }
 
             $release = new Release();
diff --git a/tests/Unit/Entity/MajorVersionExpected.php b/tests/Unit/Entity/MajorVersionExpected.php
index c936e3e4..fd571bcd 100644
--- a/tests/Unit/Entity/MajorVersionExpected.php
+++ b/tests/Unit/Entity/MajorVersionExpected.php
@@ -23,17 +23,15 @@
 
 namespace App\Tests\Unit\Entity;
 
-use DateTimeImmutable;
-
 class MajorVersionExpected
 {
     public function __construct(
         public readonly float $version,
         public readonly string $title,
-        public readonly DateTimeImmutable $releaseDate,
-        public readonly ?DateTimeImmutable $regularMaintenanceUntil,
-        public readonly ?DateTimeImmutable $maintainedUntil,
-        public readonly ?DateTimeImmutable $eltsUntil,
+        public readonly \DateTimeImmutable $releaseDate,
+        public readonly ?\DateTimeImmutable $regularMaintenanceUntil,
+        public readonly ?\DateTimeImmutable $maintainedUntil,
+        public readonly ?\DateTimeImmutable $eltsUntil,
         public readonly bool $active,
         public readonly bool $elts,
     ) {}
diff --git a/tests/Unit/Entity/MajorVersionTest.php b/tests/Unit/Entity/MajorVersionTest.php
index 3ba32a49..bee69d04 100644
--- a/tests/Unit/Entity/MajorVersionTest.php
+++ b/tests/Unit/Entity/MajorVersionTest.php
@@ -25,10 +25,7 @@
 
 use App\Entity\MajorVersion;
 use Doctrine\Common\Collections\ArrayCollection;
-use Iterator;
-use LogicException;
 use PHPUnit\Framework\TestCase;
-use DateTimeImmutable;
 
 class MajorVersionTest extends TestCase
 {
@@ -78,7 +75,7 @@ public function entityToJsonTest(MajorVersion $majorVersion, MajorVersionExpecte
         $majorVersion = json_decode($majorVersion, true, 512, JSON_THROW_ON_ERROR);
 
         if (!is_array($majorVersion)) {
-            throw new LogicException('Array expected');
+            throw new \LogicException('Array expected');
         }
 
         self::assertEquals($expectedResult->active, $majorVersion['active'] ?? null);
@@ -86,11 +83,11 @@ public function entityToJsonTest(MajorVersion $majorVersion, MajorVersionExpecte
     }
 
     /**
-     * @return Iterator<string, array<int, MajorVersion|MajorVersionExpected>>
+     * @return \Iterator<string, array<int, MajorVersion|MajorVersionExpected>>
      */
-    public function entityTestDataProvider(): Iterator
+    public function entityTestDataProvider(): \Iterator
     {
-        $dateTimeToday = new DateTimeImmutable();
+        $dateTimeToday = new \DateTimeImmutable();
         $collection = new ArrayCollection();
 
         yield 'SPRINT' => [
diff --git a/tests/Unit/Utility/VersionUtilityTest.php b/tests/Unit/Utility/VersionUtilityTest.php
index 7b68cd58..357dea61 100644
--- a/tests/Unit/Utility/VersionUtilityTest.php
+++ b/tests/Unit/Utility/VersionUtilityTest.php
@@ -24,7 +24,6 @@
 namespace App\Tests\Unit\Utility;
 
 use App\Utility\VersionUtility;
-use Iterator;
 use PHPUnit\Framework\TestCase;
 
 class VersionUtilityTest extends TestCase
@@ -41,9 +40,9 @@ public function extractMajorVersionNumberTest(string $version, float $expectedRe
     }
 
     /**
-     * @return Iterator<string, array<int, float|string>>
+     * @return \Iterator<string, array<int, float|string>>
      */
-    public function extractMajorVersionNumberTestDataProvider(): Iterator
+    public function extractMajorVersionNumberTestDataProvider(): \Iterator
     {
         yield 'Minor 4' => ['4.5', 4.5];
         yield 'Patch 4' => ['4.5.35', 4.5];
@@ -70,9 +69,9 @@ public function isValidSemverVersionTest(string $version, bool $expectedResult):
     }
 
     /**
-     * @return Iterator<string, array<bool|string>>
+     * @return \Iterator<string, array<bool|string>>
      */
-    public function isValidSemverVersionTestDataProvider(): Iterator
+    public function isValidSemverVersionTestDataProvider(): \Iterator
     {
         yield 'Patch 6' => ['6.2.0', true];
         yield 'Dev 6' => ['6.99.99-dev', true];
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index ee694b5f..2d759861 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -26,15 +26,12 @@
 use Symfony\Component\Dotenv\Dotenv;
 use Symfony\Component\Filesystem\Filesystem;
 
-use function file_exists;
-use function dirname;
+require \dirname(__DIR__) . '/vendor/autoload.php';
 
-require dirname(__DIR__) . '/vendor/autoload.php';
-
-if (file_exists(dirname(__DIR__) . '/config/bootstrap.php')) {
-    require dirname(__DIR__) . '/config/bootstrap.php';
+if (\file_exists(\dirname(__DIR__) . '/config/bootstrap.php')) {
+    require \dirname(__DIR__) . '/config/bootstrap.php';
 } else {
-    (new Dotenv())->bootEnv(dirname(__DIR__) . '/.env');
+    (new Dotenv())->bootEnv(\dirname(__DIR__) . '/.env');
 }
 
 // ensure a fresh cache when debug mode is disabled