diff --git a/Comparator/NumberComparator.php b/Comparator/NumberComparator.php
index ff85d967..dd308207 100644
--- a/Comparator/NumberComparator.php
+++ b/Comparator/NumberComparator.php
@@ -35,7 +35,7 @@
 class NumberComparator extends Comparator
 {
     /**
-     * @param string|int $test A comparison string or an integer
+     * @param string|null $test A comparison string or null
      *
      * @throws \InvalidArgumentException If the test is not understood
      */
diff --git a/Iterator/ExcludeDirectoryFilterIterator.php b/Iterator/ExcludeDirectoryFilterIterator.php
index efe9364f..699b1acb 100644
--- a/Iterator/ExcludeDirectoryFilterIterator.php
+++ b/Iterator/ExcludeDirectoryFilterIterator.php
@@ -19,6 +19,7 @@
  * @author Fabien Potencier <fabien@symfony.com>
  *
  * @extends \FilterIterator<string, SplFileInfo>
+ *
  * @implements \RecursiveIterator<string, SplFileInfo>
  */
 class ExcludeDirectoryFilterIterator extends \FilterIterator implements \RecursiveIterator
diff --git a/Iterator/RecursiveDirectoryIterator.php b/Iterator/RecursiveDirectoryIterator.php
index c321aee7..3582e6c1 100644
--- a/Iterator/RecursiveDirectoryIterator.php
+++ b/Iterator/RecursiveDirectoryIterator.php
@@ -18,6 +18,7 @@
  * Extends the \RecursiveDirectoryIterator to support relative paths.
  *
  * @author Victor Berchet <victor@suumit.com>
+ *
  * @extends \RecursiveDirectoryIterator<string, SplFileInfo>
  */
 class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
diff --git a/LICENSE b/LICENSE
index 00837045..0138f8f0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2004-2023 Fabien Potencier
+Copyright (c) 2004-present Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/Tests/Comparator/ComparatorTest.php b/Tests/Comparator/ComparatorTest.php
index a42d07fc..722199cb 100644
--- a/Tests/Comparator/ComparatorTest.php
+++ b/Tests/Comparator/ComparatorTest.php
@@ -37,7 +37,7 @@ public function testTestSucceeds(string $operator, string $target, string $teste
         $this->assertTrue($c->test($testedValue));
     }
 
-    public function provideMatches(): array
+    public static function provideMatches(): array
     {
         return [
             ['<', '1000', '500'],
@@ -63,7 +63,7 @@ public function testTestFails(string $operator, string $target, string $testedVa
         $this->assertFalse($c->test($testedValue));
     }
 
-    public function provideNonMatches(): array
+    public static function provideNonMatches(): array
     {
         return [
             ['>', '1000', '500'],
diff --git a/Tests/Comparator/DateComparatorTest.php b/Tests/Comparator/DateComparatorTest.php
index f89a1a28..47bcc483 100644
--- a/Tests/Comparator/DateComparatorTest.php
+++ b/Tests/Comparator/DateComparatorTest.php
@@ -49,7 +49,7 @@ public function testTest($test, $match, $noMatch)
         }
     }
 
-    public function getTestData()
+    public static function getTestData()
     {
         return [
             ['< 2005-10-10', [strtotime('2005-10-09')], [strtotime('2005-10-15')]],
diff --git a/Tests/Comparator/NumberComparatorTest.php b/Tests/Comparator/NumberComparatorTest.php
index 6458133e..60c5f1c6 100644
--- a/Tests/Comparator/NumberComparatorTest.php
+++ b/Tests/Comparator/NumberComparatorTest.php
@@ -51,7 +51,7 @@ public function testTest($test, $match, $noMatch)
         }
     }
 
-    public function getTestData()
+    public static function getTestData()
     {
         return [
             ['< 1000', ['500', '999'], ['1000', '1500']],
@@ -81,7 +81,7 @@ public function getTestData()
         ];
     }
 
-    public function getConstructorTestData()
+    public static function getConstructorTestData()
     {
         return [
             [
diff --git a/Tests/FinderTest.php b/Tests/FinderTest.php
index 85d7c278..cfcec911 100644
--- a/Tests/FinderTest.php
+++ b/Tests/FinderTest.php
@@ -1436,7 +1436,7 @@ public function testRegexSpecialCharsLocationWithPathRestrictionContainingStartF
         $this->assertIterator($this->toAbsoluteFixtures($expected), $finder);
     }
 
-    public function getContainsTestData()
+    public static function getContainsTestData()
     {
         return [
             ['', '', []],
@@ -1454,7 +1454,7 @@ public function getContainsTestData()
         ];
     }
 
-    public function getRegexNameTestData()
+    public static function getRegexNameTestData()
     {
         return [
             ['~.*t\\.p.+~i'],
@@ -1475,7 +1475,7 @@ public function testPath($matchPatterns, $noMatchPatterns, array $expected)
         $this->assertIterator($this->toAbsoluteFixtures($expected), $finder);
     }
 
-    public function getTestPathData()
+    public static function getTestPathData()
     {
         return [
             ['', '', []],
diff --git a/Tests/GitignoreTest.php b/Tests/GitignoreTest.php
index 65b52057..574e9f32 100644
--- a/Tests/GitignoreTest.php
+++ b/Tests/GitignoreTest.php
@@ -392,7 +392,7 @@ public static function provider(): array
         return $cases;
     }
 
-    public function providerExtended(): array
+    public static function providerExtended(): array
     {
         $basicCases = self::provider();
 
@@ -479,7 +479,7 @@ public function testToRegexMatchingNegatedPatterns(array $gitignoreLines, array
         }
     }
 
-    public function provideNegatedPatternsCases(): iterable
+    public static function provideNegatedPatternsCases(): iterable
     {
         yield [
             [''],
diff --git a/Tests/Iterator/CustomFilterIteratorTest.php b/Tests/Iterator/CustomFilterIteratorTest.php
index 7c3c65ce..3b1f662e 100644
--- a/Tests/Iterator/CustomFilterIteratorTest.php
+++ b/Tests/Iterator/CustomFilterIteratorTest.php
@@ -33,7 +33,7 @@ public function testAccept($filters, $expected)
         $this->assertIterator($expected, $iterator);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         return [
             [[function (\SplFileInfo $fileinfo) { return false; }], []],
diff --git a/Tests/Iterator/DateRangeFilterIteratorTest.php b/Tests/Iterator/DateRangeFilterIteratorTest.php
index 089359b9..f4985dfa 100644
--- a/Tests/Iterator/DateRangeFilterIteratorTest.php
+++ b/Tests/Iterator/DateRangeFilterIteratorTest.php
@@ -22,7 +22,7 @@ class DateRangeFilterIteratorTest extends RealIteratorTestCase
     public function testAccept($size, $expected)
     {
         $files = self::$files;
-        $files[] = self::toAbsolute('doesnotexist');
+        $files[] = static::toAbsolute('doesnotexist');
         $inner = new Iterator($files);
 
         $iterator = new DateRangeFilterIterator($inner, $size);
@@ -30,7 +30,7 @@ public function testAccept($size, $expected)
         $this->assertIterator($expected, $iterator);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         $since20YearsAgo = [
             '.git',
@@ -88,9 +88,9 @@ public function getAcceptData()
         ];
 
         return [
-            [[new DateComparator('since 20 years ago')], $this->toAbsolute($since20YearsAgo)],
-            [[new DateComparator('since 2 months ago')], $this->toAbsolute($since2MonthsAgo)],
-            [[new DateComparator('until last month')], $this->toAbsolute($untilLastMonth)],
+            [[new DateComparator('since 20 years ago')], static::toAbsolute($since20YearsAgo)],
+            [[new DateComparator('since 2 months ago')], static::toAbsolute($since2MonthsAgo)],
+            [[new DateComparator('until last month')], static::toAbsolute($untilLastMonth)],
         ];
     }
 }
diff --git a/Tests/Iterator/DepthRangeFilterIteratorTest.php b/Tests/Iterator/DepthRangeFilterIteratorTest.php
index 69feccc0..3a4d6790 100644
--- a/Tests/Iterator/DepthRangeFilterIteratorTest.php
+++ b/Tests/Iterator/DepthRangeFilterIteratorTest.php
@@ -30,7 +30,7 @@ public function testAccept($minDepth, $maxDepth, $expected)
         $this->assertEquals($expected, $actual);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         $lessThan1 = [
             '.git',
@@ -95,11 +95,11 @@ public function getAcceptData()
         ];
 
         return [
-            [0, 0, static::toAbsolute($lessThan1)],
-            [0, 1, static::toAbsolute($lessThanOrEqualTo1)],
+            [0, 0, self::toAbsolute($lessThan1)],
+            [0, 1, self::toAbsolute($lessThanOrEqualTo1)],
             [2, \PHP_INT_MAX, []],
-            [1, \PHP_INT_MAX, static::toAbsolute($graterThanOrEqualTo1)],
-            [1, 1, static::toAbsolute($equalTo1)],
+            [1, \PHP_INT_MAX, self::toAbsolute($graterThanOrEqualTo1)],
+            [1, 1, self::toAbsolute($equalTo1)],
         ];
     }
 }
diff --git a/Tests/Iterator/ExcludeDirectoryFilterIteratorTest.php b/Tests/Iterator/ExcludeDirectoryFilterIteratorTest.php
index 519ff037..728b7831 100644
--- a/Tests/Iterator/ExcludeDirectoryFilterIteratorTest.php
+++ b/Tests/Iterator/ExcludeDirectoryFilterIteratorTest.php
@@ -28,7 +28,7 @@ public function testAccept($directories, $expected)
         $this->assertIterator($expected, $iterator);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         $foo = [
             '.bar',
@@ -105,9 +105,9 @@ public function getAcceptData()
         ];
 
         return [
-            [['foo'], static::toAbsolute($foo)],
-            [['fo'], static::toAbsolute($fo)],
-            [['toto/'], static::toAbsolute($toto)],
+            [['foo'], self::toAbsolute($foo)],
+            [['fo'], self::toAbsolute($fo)],
+            [['toto/'], self::toAbsolute($toto)],
         ];
     }
 }
diff --git a/Tests/Iterator/FileTypeFilterIteratorTest.php b/Tests/Iterator/FileTypeFilterIteratorTest.php
index 3a70697a..e349fc74 100644
--- a/Tests/Iterator/FileTypeFilterIteratorTest.php
+++ b/Tests/Iterator/FileTypeFilterIteratorTest.php
@@ -27,7 +27,7 @@ public function testAccept($mode, $expected)
         $this->assertIterator($expected, $iterator);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         $onlyFiles = [
             'test.py',
@@ -59,8 +59,8 @@ public function getAcceptData()
         ];
 
         return [
-            [FileTypeFilterIterator::ONLY_FILES, static::toAbsolute($onlyFiles)],
-            [FileTypeFilterIterator::ONLY_DIRECTORIES, static::toAbsolute($onlyDirectories)],
+            [FileTypeFilterIterator::ONLY_FILES, self::toAbsolute($onlyFiles)],
+            [FileTypeFilterIterator::ONLY_DIRECTORIES, self::toAbsolute($onlyDirectories)],
         ];
     }
 }
diff --git a/Tests/Iterator/FilecontentFilterIteratorTest.php b/Tests/Iterator/FilecontentFilterIteratorTest.php
index f4f70c8e..34ba50dd 100644
--- a/Tests/Iterator/FilecontentFilterIteratorTest.php
+++ b/Tests/Iterator/FilecontentFilterIteratorTest.php
@@ -45,7 +45,7 @@ public function testFilter(\Iterator $inner, array $matchPatterns, array $noMatc
         $this->assertIterator($resultArray, $iterator);
     }
 
-    public function getTestFilterData()
+    public static function getTestFilterData()
     {
         $inner = new MockFileListIterator();
 
diff --git a/Tests/Iterator/FilenameFilterIteratorTest.php b/Tests/Iterator/FilenameFilterIteratorTest.php
index a12072c6..db4eb2b9 100644
--- a/Tests/Iterator/FilenameFilterIteratorTest.php
+++ b/Tests/Iterator/FilenameFilterIteratorTest.php
@@ -27,7 +27,7 @@ public function testAccept($matchPatterns, $noMatchPatterns, $expected)
         $this->assertIterator($expected, $iterator);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         return [
             [['test.*'], [], ['test.php', 'test.py']],
diff --git a/Tests/Iterator/MultiplePcreFilterIteratorTest.php b/Tests/Iterator/MultiplePcreFilterIteratorTest.php
index e1bd835b..e6abf944 100644
--- a/Tests/Iterator/MultiplePcreFilterIteratorTest.php
+++ b/Tests/Iterator/MultiplePcreFilterIteratorTest.php
@@ -25,7 +25,7 @@ public function testIsRegex($string, $isRegex, $message)
         $this->assertEquals($isRegex, $testIterator->isRegex($string), $message);
     }
 
-    public function getIsRegexFixtures()
+    public static function getIsRegexFixtures()
     {
         yield ['foo', false, 'string'];
         yield [' foo ', false, '" " is not a valid delimiter'];
diff --git a/Tests/Iterator/PathFilterIteratorTest.php b/Tests/Iterator/PathFilterIteratorTest.php
index e2c13252..5c0663e5 100644
--- a/Tests/Iterator/PathFilterIteratorTest.php
+++ b/Tests/Iterator/PathFilterIteratorTest.php
@@ -24,7 +24,7 @@ public function testFilter(\Iterator $inner, array $matchPatterns, array $noMatc
         $this->assertIterator($resultArray, $iterator);
     }
 
-    public function getTestFilterData()
+    public static function getTestFilterData()
     {
         $inner = new MockFileListIterator();
 
diff --git a/Tests/Iterator/SizeRangeFilterIteratorTest.php b/Tests/Iterator/SizeRangeFilterIteratorTest.php
index 25a6b8a2..e5f3b6a1 100644
--- a/Tests/Iterator/SizeRangeFilterIteratorTest.php
+++ b/Tests/Iterator/SizeRangeFilterIteratorTest.php
@@ -28,7 +28,7 @@ public function testAccept($size, $expected)
         $this->assertIterator($expected, $iterator);
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         $lessThan1KGreaterThan05K = [
             '.foo',
diff --git a/Tests/Iterator/SortableIteratorTest.php b/Tests/Iterator/SortableIteratorTest.php
index 6cc31890..5a570556 100644
--- a/Tests/Iterator/SortableIteratorTest.php
+++ b/Tests/Iterator/SortableIteratorTest.php
@@ -68,7 +68,7 @@ public function testAccept($mode, $expected)
         }
     }
 
-    public function getAcceptData()
+    public static function getAcceptData()
     {
         $sortByName = [
             '.bar',
@@ -261,13 +261,13 @@ public function getAcceptData()
         ];
 
         return [
-            [SortableIterator::SORT_BY_NAME, static::toAbsolute($sortByName)],
-            [SortableIterator::SORT_BY_TYPE, static::toAbsolute($sortByType)],
-            [SortableIterator::SORT_BY_ACCESSED_TIME, static::toAbsolute($sortByAccessedTime)],
-            [SortableIterator::SORT_BY_CHANGED_TIME, static::toAbsolute($sortByChangedTime)],
-            [SortableIterator::SORT_BY_MODIFIED_TIME, static::toAbsolute($sortByModifiedTime)],
-            [SortableIterator::SORT_BY_NAME_NATURAL, static::toAbsolute($sortByNameNatural)],
-            [function (\SplFileInfo $a, \SplFileInfo $b) { return strcmp($a->getRealPath(), $b->getRealPath()); }, static::toAbsolute($customComparison)],
+            [SortableIterator::SORT_BY_NAME, self::toAbsolute($sortByName)],
+            [SortableIterator::SORT_BY_TYPE, self::toAbsolute($sortByType)],
+            [SortableIterator::SORT_BY_ACCESSED_TIME, self::toAbsolute($sortByAccessedTime)],
+            [SortableIterator::SORT_BY_CHANGED_TIME, self::toAbsolute($sortByChangedTime)],
+            [SortableIterator::SORT_BY_MODIFIED_TIME, self::toAbsolute($sortByModifiedTime)],
+            [SortableIterator::SORT_BY_NAME_NATURAL, self::toAbsolute($sortByNameNatural)],
+            [function (\SplFileInfo $a, \SplFileInfo $b) { return strcmp($a->getRealPath(), $b->getRealPath()); }, self::toAbsolute($customComparison)],
         ];
     }
 }
diff --git a/Tests/Iterator/VcsIgnoredFilterIteratorTest.php b/Tests/Iterator/VcsIgnoredFilterIteratorTest.php
index 14cb3c44..61da148d 100644
--- a/Tests/Iterator/VcsIgnoredFilterIteratorTest.php
+++ b/Tests/Iterator/VcsIgnoredFilterIteratorTest.php
@@ -59,7 +59,7 @@ public function testAccept(array $gitIgnoreFiles, array $otherFileNames, array $
         $this->assertIterator($this->toAbsolute($expectedResult), $iterator);
     }
 
-    public function getAcceptData(): iterable
+    public static function getAcceptData(): iterable
     {
         yield 'simple file' => [
             [