TYPO3 · helhum · Apr 17, 2026 · Apr 17, 2026
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5']
+        php: ['8.2', '8.3', '8.4', '8.5']
 
     steps:
       - uses: actions/checkout@v2

diff --git a/.gitignore b/.gitignore
@@ -1,5 +1,6 @@
 /.ddev
-/.php_cs.cache
+/.php-cs-fixer.cache
+/.phpunit.cache
 /.idea
 /composer.lock
 /vendor
diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
@@ -0,0 +1,118 @@
+<?php
+if (PHP_SAPI !== 'cli') {
+    die('This script supports command line usage only. Please check your command.');
+}
+
+return (new \PhpCsFixer\Config())
+    ->setParallelConfig(\PhpCsFixer\Runner\Parallel\ParallelConfigFactory::detect())
+    ->setFinder(
+        (new PhpCsFixer\Finder())
+            ->ignoreVCSIgnored(true)
+            ->in(__DIR__)
+            ->exclude('.github')
+            ->exclude('vendor'),
+    )
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@DoctrineAnnotation' => true,
+        // @todo: Switch to @PER-CS2x0 once php-cs-fixer's todo list is done: https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/issues/7247
+        '@PER-CS1x0' => true,
+        'array_indentation' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'cast_spaces' => ['space' => 'none'],
+        // @todo: Can be dropped once we enable @PER-CS2x0
+        'concat_space' => ['spacing' => 'one'],
+        'declare_equal_normalize' => ['space' => 'none'],
+        'declare_parentheses' => true,
+        'dir_constant' => true,
+        // @todo: Can be dropped once we enable @PER-CS2x0
+        'function_declaration' => [
+            'closure_fn_spacing' => 'none',
+        ],
+        '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-CS2x0
+        'method_argument_space' => true,
+        'modernize_strpos' => true,
+        'modernize_types_casting' => true,
+        'native_function_casing' => true,
+        'native_function_invocation' => [
+            'include' => [],
+            'scope' => 'all',
+            'strict' => 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',
+        ],
+        'nullable_type_declaration_for_default_null_value' => true,
+        'ordered_class_elements' => ['order' => ['use_trait', 'case', 'constant', 'property']],
+        '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',
+            'methods' => [
+                'any' => 'this',
+                'atLeast' => 'this',
+                'atLeastOnce' => 'this',
+                'atMost' => 'this',
+                'exactly' => 'this',
+                'never' => 'this',
+                'onConsecutiveCalls' => 'this',
+                'once' => 'this',
+                'returnArgument' => 'this',
+                'returnCallback' => 'this',
+                'returnSelf' => 'this',
+                'returnValue' => 'this',
+                'returnValueMap' => 'this',
+                'throwException' => 'this',
+            ],
+        ],
+        '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'],
+        'protected_to_private' => true,
+        '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-CS2x0
+        '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],
+    ]);
diff --git a/.php_cs.dist b/.php_cs.dist
diff --git a/README.md b/README.md
@@ -42,37 +42,8 @@ return array(
 );
 ```
 
-The '::class' constant is not available before PHP 5.5. Under a PHP before 5.5 the mapping file can look like this:
 
-```
-<?php
-return array(
-    'Tx_About_Controller_AboutController' => 'TYPO3\\CMS\\About\\Controller\\AboutController',
-    'Tx_About_Domain_Model_Extension' => 'TYPO3\\CMS\\About\\Domain\\Model\\Extension',
-    'Tx_About_Domain_Repository_ExtensionRepository' => 'TYPO3\\CMS\\About\\Domain\\Repository\\ExtensionRepository',
-    'Tx_Aboutmodules_Controller_ModulesController' => 'TYPO3\\CMS\\Aboutmodules\\Controller\\ModulesController',
-);
-```
-
-In your *root* `composer.json` file, you can decide whether to allow classes to be found that are requested with wrong casing.
-Since PHP is case insensitive for class names, but PSR class loading standards bound file names to class names, class names de facto
-become case sensitive. For legacy packages it may be useful however to allow class names to be loaded even if wrong casing is provided.
-For this to work properly, you need to use the composer [optimize class loading information feature](https://getcomposer.org/doc/03-cli.md#global-options).
-
-
-You can activate this feature like this:
-
-```
-    "extra": {
-        "typo3/class-alias-loader": {
-            "autoload-case-sensitivity": false
-        }
-    },
-```
-
-The default value of this option is `true`.
-
-If no alias mapping is found and case sensitivity is set to `true` then by default this package does nothing. It means no additional class loading information is dumped
+If no alias mapping is found then by default this package does nothing. It means no additional class loading information is dumped
 and the `vendor/autoload.php` is not changed. This enables library vendors to deliver compatibility packages which provide such aliases
 for backwards compatibility, but keep the library clean (and faster) for new users.
 

diff --git a/composer.json b/composer.json
@@ -20,21 +20,22 @@
         "psr-4": { "TYPO3\\ClassAliasLoader\\Test\\": "tests/"}
     },
     "require": {
-        "php": ">=7.1",
+        "php": ">=8.2",
         "composer-plugin-api": "^2.0"
     },
     "require-dev": {
         "composer/composer": "^2.0@dev",
         "mikey179/vfsstream": "~1.4.0@dev",
-        "phpunit/phpunit": "^8 || ^9"
+        "phpunit/phpunit": "^11",
+        "friendsofphp/php-cs-fixer": "^3.95"
     },
     "replace": {
         "helhum/class-alias-loader": "*"
     },
     "extra": {
         "class": "TYPO3\\ClassAliasLoader\\Plugin",
         "branch-alias": {
-            "dev-main": "1.1.x-dev"
+            "dev-main": "2.0.x-dev"
         }
     }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
@@ -1,29 +1,24 @@
-<phpunit
-        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-        xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
-        beStrictAboutTestsThatDoNotTestAnything="true"
-        cacheResult="false"
-        colors="true"
-        convertDeprecationsToExceptions="true"
-        convertErrorsToExceptions="true"
-        convertNoticesToExceptions="true"
-        convertWarningsToExceptions="true"
-        failOnRisky="true"
-        failOnWarning="true"
-        forceCoversAnnotation="false"
-        processIsolation="false"
-        stopOnError="false"
-        stopOnFailure="false"
-        stopOnIncomplete="false"
-        stopOnSkipped="false"
-        verbose="false"
->
-    <testsuites>
-        <testsuite name="Unit tests">
-            <directory>tests/Unit/</directory>
-        </testsuite>
-    </testsuites>
-    <php>
-        <ini name="error_reporting" value="E_ALL" />
-    </php>
+<?xml version="1.0"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.5/phpunit.xsd"
+         beStrictAboutTestsThatDoNotTestAnything="true"
+         cacheResult="false"
+         colors="true"
+         failOnRisky="true"
+         failOnWarning="true"
+         processIsolation="false"
+         stopOnError="false"
+         stopOnFailure="false"
+         stopOnIncomplete="false"
+         stopOnSkipped="false"
+         cacheDirectory=".phpunit.cache"
+         requireCoverageMetadata="false">
+  <testsuites>
+    <testsuite name="Unit tests">
+      <directory>tests/Unit/</directory>
+    </testsuite>
+  </testsuites>
+  <php>
+    <ini name="error_reporting" value="E_ALL"/>
+  </php>
 </phpunit>
diff --git a/res/php/alias-loader-include.tmpl.php b/res/php/alias-loader-include.tmpl.php
@@ -1,9 +1,10 @@
 <?php
 
+declare(strict_types=1);
+
 $composerAutoLoader = require dirname(__DIR__) . '/autoload.php';
 $classAliasMap = require dirname(__DIR__) . '/composer/autoload_classaliasmap.php';
 $classAliasLoader = new TYPO3\ClassAliasLoader\ClassAliasLoader($composerAutoLoader);
 $classAliasLoader->setAliasMap($classAliasMap);
-$classAliasLoader->setCaseSensitiveClassLoading('{$sensitive-loading}');
 $classAliasLoader->register('{$prepend}');
 TYPO3\ClassAliasLoader\ClassAliasMap::setClassAliasLoader($classAliasLoader);