diff --git a/CHANGELOG.md b/CHANGELOG.md
index d270298c..ce73b42e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ For a full diff see [`6.37.0...main`][6.37.0...main].
 ### Changed
 
 - Added support for PHP 8.4 ([#1139]), by [@localheinz]
+- Added `Config\Ruleset\Php84` rule set ([#1140]), by [@localheinz]
 
 ## [`6.37.0`][6.37.0]
 
@@ -1766,6 +1767,7 @@ For a full diff see [`d899e77...1.0.0`][d899e77...1.0.0].
 [#1103]: https://github.com/ergebnis/php-cs-fixer-config/pull/1103
 [#1109]: https://github.com/ergebnis/php-cs-fixer-config/pull/1109
 [#1139]: https://github.com/ergebnis/php-cs-fixer-config/pull/1139
+[#1140]: https://github.com/ergebnis/php-cs-fixer-config/pull/1140
 
 [@dependabot]: https://github.com/apps/dependabot
 [@linuxjuggler]: https://github.com/linuxjuggler
diff --git a/README.md b/README.md
index 629c45a6..664b2f4b 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,7 @@ Pick one of the rule sets:
 - [`Ergebnis\PhpCsFixer\RuleSet\Php81`](src/RuleSet/Php81.php)
 - [`Ergebnis\PhpCsFixer\RuleSet\Php82`](src/RuleSet/Php82.php)
 - [`Ergebnis\PhpCsFixer\RuleSet\Php83`](src/RuleSet/Php83.php)
+- [`Ergebnis\PhpCsFixer\RuleSet\Php84`](src/RuleSet/Php84.php)
 
 Create a configuration file `.php-cs-fixer.php` in the root of your project:
 
diff --git a/src/RuleSet/Php84.php b/src/RuleSet/Php84.php
new file mode 100644
index 00000000..8821d57d
--- /dev/null
+++ b/src/RuleSet/Php84.php
@@ -0,0 +1,913 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2019-2024 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/php-cs-fixer-config
+ */
+
+namespace Ergebnis\PhpCsFixer\Config\RuleSet;
+
+use Ergebnis\PhpCsFixer\Config\Fixers;
+use Ergebnis\PhpCsFixer\Config\Name;
+use Ergebnis\PhpCsFixer\Config\PhpVersion;
+use Ergebnis\PhpCsFixer\Config\Rules;
+use Ergebnis\PhpCsFixer\Config\RuleSet;
+use ErickSkrauch\PhpCsFixer;
+use PhpCsFixerCustomFixers\Fixer;
+
+final class Php84
+{
+    public static function create(): RuleSet
+    {
+        $phpVersion = PhpVersion::create(
+            PhpVersion\Major::fromInt(8),
+            PhpVersion\Minor::fromInt(4),
+            PhpVersion\Patch::fromInt(0),
+        );
+
+        return RuleSet::create(
+            Fixers::fromFixers(
+                new Fixer\MultilineCommentOpeningClosingAloneFixer(),
+                new Fixer\MultilinePromotedPropertiesFixer(),
+                new Fixer\NoDuplicatedArrayKeyFixer(),
+                new Fixer\NoDuplicatedImportsFixer(),
+                new Fixer\PhpdocTypesCommaSpacesFixer(),
+                new PhpCsFixer\Fixer\Whitespace\LineBreakAfterStatementsFixer(),
+            ),
+            Name::fromString(\sprintf(
+                'ergebnis (PHP %d.%d)',
+                $phpVersion->major()->toInt(),
+                $phpVersion->minor()->toInt(),
+            )),
+            $phpVersion,
+            Rules::fromArray([
+                'ErickSkrauch/line_break_after_statements' => true,
+                'PhpCsFixerCustomFixers/multiline_comment_opening_closing_alone' => true,
+                'PhpCsFixerCustomFixers/multiline_promoted_properties' => [
+                    'keep_blank_lines' => false,
+                    'minimum_number_of_parameters' => 2,
+                ],
+                'PhpCsFixerCustomFixers/no_duplicated_array_key' => [
+                    'ignore_expressions' => true,
+                ],
+                'PhpCsFixerCustomFixers/no_duplicated_imports' => true,
+                'PhpCsFixerCustomFixers/phpdoc_types_comma_spaces' => true,
+                'align_multiline_comment' => [
+                    'comment_type' => 'all_multiline',
+                ],
+                'array_indentation' => true,
+                'array_push' => true,
+                'array_syntax' => [
+                    'syntax' => 'short',
+                ],
+                'assign_null_coalescing_to_coalesce_equal' => true,
+                'attribute_empty_parentheses' => [
+                    'use_parentheses' => true,
+                ],
+                'backtick_to_shell_exec' => true,
+                'binary_operator_spaces' => [
+                    'default' => 'single_space',
+                    'operators' => [],
+                ],
+                'blank_line_after_namespace' => true,
+                'blank_line_after_opening_tag' => true,
+                'blank_line_before_statement' => [
+                    'statements' => [
+                        'break',
+                        'case',
+                        'continue',
+                        'declare',
+                        'default',
+                        'do',
+                        'exit',
+                        'for',
+                        'foreach',
+                        'goto',
+                        'if',
+                        'include',
+                        'include_once',
+                        'phpdoc',
+                        'require',
+                        'require_once',
+                        'return',
+                        'switch',
+                        'throw',
+                        'try',
+                        'while',
+                        'yield',
+                        'yield_from',
+                    ],
+                ],
+                'blank_line_between_import_groups' => false,
+                'blank_lines_before_namespace' => [
+                    'max_line_breaks' => 2,
+                    'min_line_breaks' => 2,
+                ],
+                'braces_position' => [
+                    'allow_single_line_anonymous_functions' => false,
+                    'allow_single_line_empty_anonymous_classes' => false,
+                    'anonymous_classes_opening_brace' => 'same_line',
+                    'anonymous_functions_opening_brace' => 'same_line',
+                    'classes_opening_brace' => 'next_line_unless_newline_at_signature_end',
+                    'control_structures_opening_brace' => 'same_line',
+                    'functions_opening_brace' => 'next_line_unless_newline_at_signature_end',
+                ],
+                'cast_spaces' => [
+                    'space' => 'single',
+                ],
+                'class_attributes_separation' => [
+                    'elements' => [
+                        'case' => 'only_if_meta',
+                        'const' => 'only_if_meta',
+                        'method' => 'one',
+                        'property' => 'only_if_meta',
+                        'trait_import' => 'none',
+                    ],
+                ],
+                'class_definition' => [
+                    'inline_constructor_arguments' => true,
+                    'multi_line_extends_each_single_line' => false,
+                    'single_item_single_line' => false,
+                    'single_line' => false,
+                    'space_before_parenthesis' => false,
+                ],
+                'class_keyword' => false,
+                'class_reference_name_casing' => true,
+                'clean_namespace' => true,
+                'combine_consecutive_issets' => true,
+                'combine_consecutive_unsets' => true,
+                'combine_nested_dirname' => true,
+                'comment_to_phpdoc' => [
+                    'ignored_tags' => [],
+                ],
+                'compact_nullable_type_declaration' => true,
+                'concat_space' => [
+                    'spacing' => 'one',
+                ],
+                'constant_case' => [
+                    'case' => 'lower',
+                ],
+                'control_structure_braces' => true,
+                'control_structure_continuation_position' => [
+                    'position' => 'same_line',
+                ],
+                'date_time_create_from_format_call' => true,
+                'date_time_immutable' => true,
+                'declare_equal_normalize' => [
+                    'space' => 'none',
+                ],
+                'declare_parentheses' => true,
+                'declare_strict_types' => true,
+                'dir_constant' => true,
+                'doctrine_annotation_array_assignment' => [
+                    'ignored_tags' => Doctrine::IGNORED_TAGS,
+                    'operator' => ':',
+                ],
+                'doctrine_annotation_braces' => [
+                    'ignored_tags' => Doctrine::IGNORED_TAGS,
+                    'syntax' => 'without_braces',
+                ],
+                'doctrine_annotation_indentation' => [
+                    'ignored_tags' => Doctrine::IGNORED_TAGS,
+                    'indent_mixed_lines' => false,
+                ],
+                'doctrine_annotation_spaces' => [
+                    'after_argument_assignments' => false,
+                    'after_array_assignments_colon' => true,
+                    'after_array_assignments_equals' => false,
+                    'around_commas' => true,
+                    'around_parentheses' => true,
+                    'before_argument_assignments' => false,
+                    'before_array_assignments_colon' => false,
+                    'before_array_assignments_equals' => false,
+                    'ignored_tags' => Doctrine::IGNORED_TAGS,
+                ],
+                'echo_tag_syntax' => [
+                    'format' => 'long',
+                    'long_function' => 'echo',
+                    'shorten_simple_statements_only' => true,
+                ],
+                'elseif' => true,
+                'empty_loop_body' => [
+                    'style' => 'braces',
+                ],
+                'empty_loop_condition' => [
+                    'style' => 'while',
+                ],
+                'encoding' => true,
+                'ereg_to_preg' => true,
+                'error_suppression' => [
+                    'mute_deprecation_error' => true,
+                    'noise_remaining_usages' => true,
+                    'noise_remaining_usages_exclude' => [],
+                ],
+                'explicit_indirect_variable' => true,
+                'explicit_string_variable' => true,
+                'final_class' => true,
+                'final_internal_class' => [
+                    'consider_absent_docblock_as_internal_class' => false,
+                    'exclude' => [
+                        '@Entity',
+                        '@final',
+                        '@Mapping\\Entity',
+                        '@ORM\\Entity',
+                        '@ORM\\Mapping\\Entity',
+                    ],
+                    'include' => [
+                        '@internal',
+                    ],
+                ],
+                'final_public_method_for_abstract_class' => true,
+                'fopen_flag_order' => true,
+                'fopen_flags' => [
+                    'b_mode' => true,
+                ],
+                'full_opening_tag' => true,
+                'fully_qualified_strict_types' => false,
+                'function_declaration' => [
+                    'closure_fn_spacing' => 'one',
+                    'closure_function_spacing' => 'one',
+                    'trailing_comma_single_line' => false,
+                ],
+                'function_to_constant' => [
+                    'functions' => [
+                        'get_called_class',
+                        'get_class',
+                        'php_sapi_name',
+                        'phpversion',
+                        'pi',
+                    ],
+                ],
+                'general_phpdoc_annotation_remove' => false,
+                'general_phpdoc_tag_rename' => [
+                    'case_sensitive' => false,
+                    'fix_annotation' => true,
+                    'fix_inline' => true,
+                    'replacements' => [
+                        'inheritdoc' => 'inheritdoc',
+                        'inheritdocs' => 'inheritdoc',
+                    ],
+                ],
+                'get_class_to_class_keyword' => true,
+                'global_namespace_import' => [
+                    'import_classes' => false,
+                    'import_constants' => false,
+                    'import_functions' => false,
+                ],
+                'group_import' => false,
+                'header_comment' => false,
+                'heredoc_closing_marker' => false,
+                'heredoc_indentation' => false,
+                'heredoc_to_nowdoc' => true,
+                'implode_call' => true,
+                'include' => true,
+                'increment_style' => [
+                    'style' => 'pre',
+                ],
+                'indentation_type' => true,
+                'integer_literal_case' => true,
+                'is_null' => true,
+                'lambda_not_used_import' => true,
+                'line_ending' => true,
+                'linebreak_after_opening_tag' => true,
+                'list_syntax' => [
+                    'syntax' => 'short',
+                ],
+                'logical_operators' => true,
+                'long_to_shorthand_operator' => true,
+                'lowercase_cast' => true,
+                'lowercase_keywords' => true,
+                'lowercase_static_reference' => true,
+                'magic_constant_casing' => true,
+                'magic_method_casing' => true,
+                'mb_str_functions' => true,
+                'method_argument_space' => [
+                    'after_heredoc' => false,
+                    'attribute_placement' => 'standalone',
+                    'keep_multiple_spaces_after_comma' => false,
+                    'on_multiline' => 'ensure_fully_multiline',
+                ],
+                'method_chaining_indentation' => true,
+                'modernize_strpos' => true,
+                'modernize_types_casting' => true,
+                'multiline_comment_opening_closing' => true,
+                'multiline_string_to_heredoc' => true,
+                'multiline_whitespace_before_semicolons' => [
+                    'strategy' => 'no_multi_line',
+                ],
+                'native_constant_invocation' => [
+                    'exclude' => [
+                        'false',
+                        'null',
+                        'true',
+                    ],
+                    'fix_built_in' => true,
+                    'include' => [],
+                    'scope' => 'all',
+                    'strict' => false,
+                ],
+                'native_function_casing' => true,
+                'native_function_invocation' => [
+                    'exclude' => [],
+                    'include' => [
+                        '@internal',
+                    ],
+                    'scope' => 'all',
+                    'strict' => false,
+                ],
+                'native_type_declaration_casing' => true,
+                'new_with_parentheses' => [
+                    'anonymous_class' => true,
+                    'named_class' => true,
+                ],
+                'no_alias_functions' => [
+                    'sets' => [
+                        '@all',
+                    ],
+                ],
+                'no_alias_language_construct_call' => true,
+                'no_alternative_syntax' => [
+                    'fix_non_monolithic_code' => true,
+                ],
+                'no_binary_string' => true,
+                'no_blank_lines_after_class_opening' => true,
+                'no_blank_lines_after_phpdoc' => true,
+                'no_break_comment' => [
+                    'comment_text' => 'no break',
+                ],
+                'no_closing_tag' => true,
+                'no_empty_comment' => true,
+                'no_empty_phpdoc' => true,
+                'no_empty_statement' => true,
+                'no_extra_blank_lines' => [
+                    'tokens' => [
+                        'attribute',
+                        'break',
+                        'case',
+                        'continue',
+                        'curly_brace_block',
+                        'default',
+                        'extra',
+                        'parenthesis_brace_block',
+                        'return',
+                        'square_brace_block',
+                        'switch',
+                        'throw',
+                        'use',
+                    ],
+                ],
+                'no_homoglyph_names' => true,
+                'no_leading_import_slash' => true,
+                'no_leading_namespace_whitespace' => true,
+                'no_mixed_echo_print' => [
+                    'use' => 'echo',
+                ],
+                'no_multiline_whitespace_around_double_arrow' => true,
+                'no_multiple_statements_per_line' => true,
+                'no_null_property_initialization' => true,
+                'no_php4_constructor' => false,
+                'no_short_bool_cast' => true,
+                'no_singleline_whitespace_before_semicolons' => true,
+                'no_space_around_double_colon' => true,
+                'no_spaces_after_function_name' => true,
+                'no_spaces_around_offset' => [
+                    'positions' => [
+                        'inside',
+                        'outside',
+                    ],
+                ],
+                'no_superfluous_elseif' => true,
+                'no_superfluous_phpdoc_tags' => [
+                    'allow_hidden_params' => false,
+                    'allow_mixed' => true,
+                    'allow_unused_params' => false,
+                    'remove_inheritdoc' => false,
+                ],
+                'no_trailing_comma_in_singleline' => [
+                    'elements' => [
+                        'arguments',
+                        'array',
+                        'array_destructuring',
+                        'group_import',
+                    ],
+                ],
+                'no_trailing_whitespace' => true,
+                'no_trailing_whitespace_in_comment' => true,
+                'no_trailing_whitespace_in_string' => true,
+                'no_unneeded_braces' => [
+                    'namespaces' => true,
+                ],
+                'no_unneeded_control_parentheses' => [
+                    'statements' => [
+                        'break',
+                        'clone',
+                        'continue',
+                        'echo_print',
+                        'negative_instanceof',
+                        'others',
+                        'return',
+                        'switch_case',
+                        'yield',
+                        'yield_from',
+                    ],
+                ],
+                'no_unneeded_final_method' => [
+                    'private_methods' => true,
+                ],
+                'no_unneeded_import_alias' => true,
+                'no_unreachable_default_argument_value' => true,
+                'no_unset_cast' => true,
+                'no_unset_on_property' => true,
+                'no_unused_imports' => true,
+                'no_useless_concat_operator' => [
+                    'juggle_simple_strings' => true,
+                ],
+                'no_useless_else' => true,
+                'no_useless_nullsafe_operator' => true,
+                'no_useless_return' => true,
+                'no_useless_sprintf' => true,
+                'no_whitespace_before_comma_in_array' => [
+                    'after_heredoc' => false,
+                ],
+                'no_whitespace_in_blank_line' => true,
+                'non_printable_character' => [
+                    'use_escape_sequences_in_strings' => false,
+                ],
+                'normalize_index_brace' => true,
+                'not_operator_with_space' => false,
+                'not_operator_with_successor_space' => false,
+                'nullable_type_declaration' => [
+                    'syntax' => 'question_mark',
+                ],
+                'nullable_type_declaration_for_default_null_value' => true,
+                'numeric_literal_separator' => false,
+                'object_operator_without_whitespace' => true,
+                'octal_notation' => true,
+                'operator_linebreak' => [
+                    'only_booleans' => true,
+                    'position' => 'beginning',
+                ],
+                'ordered_attributes' => [
+                    'order' => [],
+                    'sort_algorithm' => 'alpha',
+                ],
+                'ordered_class_elements' => [
+                    'case_sensitive' => false,
+                    'order' => [
+                        'use_trait',
+                        'case',
+                        'constant_public',
+                        'constant_protected',
+                        'constant_private',
+                        'property_public',
+                        'property_protected',
+                        'property_private',
+                        'construct',
+                        'destruct',
+                        'magic',
+                        'phpunit',
+                        'method_public',
+                        'method_protected',
+                        'method_private',
+                    ],
+                    'sort_algorithm' => 'none',
+                ],
+                'ordered_imports' => [
+                    'case_sensitive' => false,
+                    'imports_order' => [
+                        'class',
+                        'const',
+                        'function',
+                    ],
+                    'sort_algorithm' => 'alpha',
+                ],
+                'ordered_interfaces' => [
+                    'case_sensitive' => false,
+                    'direction' => 'ascend',
+                    'order' => 'alpha',
+                ],
+                'ordered_traits' => false,
+                'ordered_types' => [
+                    'case_sensitive' => false,
+                    'null_adjustment' => 'always_first',
+                    'sort_algorithm' => 'alpha',
+                ],
+                'php_unit_assert_new_names' => false,
+                'php_unit_attributes' => false,
+                'php_unit_construct' => [
+                    'assertions' => [
+                        'assertEquals',
+                        'assertNotEquals',
+                        'assertNotSame',
+                        'assertSame',
+                    ],
+                ],
+                'php_unit_data_provider_name' => false,
+                'php_unit_data_provider_return_type' => true,
+                'php_unit_data_provider_static' => [
+                    'force' => false,
+                ],
+                'php_unit_dedicate_assert' => [
+                    'target' => 'newest',
+                ],
+                'php_unit_dedicate_assert_internal_type' => [
+                    'target' => 'newest',
+                ],
+                'php_unit_expectation' => [
+                    'target' => 'newest',
+                ],
+                'php_unit_fqcn_annotation' => true,
+                'php_unit_internal_class' => false,
+                'php_unit_method_casing' => [
+                    'case' => 'camel_case',
+                ],
+                'php_unit_mock' => [
+                    'target' => 'newest',
+                ],
+                'php_unit_mock_short_will_return' => true,
+                'php_unit_namespaced' => [
+                    'target' => 'newest',
+                ],
+                'php_unit_no_expectation_annotation' => [
+                    'target' => 'newest',
+                    'use_class_const' => true,
+                ],
+                'php_unit_set_up_tear_down_visibility' => true,
+                'php_unit_size_class' => false,
+                'php_unit_strict' => false,
+                'php_unit_test_annotation' => [
+                    'style' => 'prefix',
+                ],
+                'php_unit_test_case_static_method_calls' => [
+                    'call_type' => 'self',
+                    'methods' => [],
+                ],
+                'php_unit_test_class_requires_covers' => false,
+                'phpdoc_add_missing_param_annotation' => [
+                    'only_untyped' => true,
+                ],
+                'phpdoc_align' => [
+                    'align' => 'vertical',
+                    'spacing' => 1,
+                    'tags' => [
+                        'method',
+                        'param',
+                        'property',
+                        'property-read',
+                        'property-write',
+                        'return',
+                        'throws',
+                        'type',
+                        'var',
+                    ],
+                ],
+                'phpdoc_annotation_without_dot' => true,
+                'phpdoc_array_type' => true,
+                'phpdoc_indent' => true,
+                'phpdoc_inline_tag_normalizer' => [
+                    'tags' => [
+                        'example',
+                        'id',
+                        'inheritdoc',
+                        'inheritdocs',
+                        'internal',
+                        'link',
+                        'source',
+                        'toc',
+                        'tutorial',
+                    ],
+                ],
+                'phpdoc_line_span' => [
+                    'const' => 'multi',
+                    'method' => 'multi',
+                    'property' => 'multi',
+                ],
+                'phpdoc_list_type' => true,
+                'phpdoc_no_access' => true,
+                'phpdoc_no_alias_tag' => [
+                    'replacements' => [
+                        'link' => 'see',
+                        'property-read' => 'property',
+                        'property-write' => 'property',
+                        'type' => 'var',
+                    ],
+                ],
+                'phpdoc_no_empty_return' => true,
+                'phpdoc_no_package' => true,
+                'phpdoc_no_useless_inheritdoc' => true,
+                'phpdoc_order' => [
+                    'order' => [
+                        'deprecated',
+                        'internal',
+                        'covers',
+                        'uses',
+                        'dataProvider',
+                        'param',
+                        'throws',
+                        'return',
+                    ],
+                ],
+                'phpdoc_order_by_value' => [
+                    'annotations' => [
+                        'author',
+                        'covers',
+                        'coversNothing',
+                        'dataProvider',
+                        'depends',
+                        'group',
+                        'internal',
+                        'method',
+                        'mixin',
+                        'property',
+                        'property-read',
+                        'property-write',
+                        'requires',
+                        'throws',
+                        'uses',
+                    ],
+                ],
+                'phpdoc_param_order' => true,
+                'phpdoc_readonly_class_comment_to_keyword' => false,
+                'phpdoc_return_self_reference' => [
+                    'replacements' => [
+                        '$self' => 'self',
+                        '$static' => 'static',
+                        '@self' => 'self',
+                        '@static' => 'static',
+                        '@this' => '$this',
+                        'this' => '$this',
+                    ],
+                ],
+                'phpdoc_scalar' => [
+                    'types' => [
+                        'boolean',
+                        'callback',
+                        'double',
+                        'integer',
+                        'real',
+                        'str',
+                    ],
+                ],
+                'phpdoc_separation' => [
+                    'groups' => [
+                        [
+                            'deprecated',
+                        ],
+                        [
+                            'link',
+                            'see',
+                            'since',
+                        ],
+                        [
+                            'author',
+                            'copyright',
+                            'license',
+                        ],
+                        [
+                            'category',
+                            'package',
+                            'subpackage',
+                        ],
+                        [
+                            'property',
+                            'property-read',
+                            'property-write',
+                        ],
+                    ],
+                    'skip_unlisted_annotations' => false,
+                ],
+                'phpdoc_single_line_var_spacing' => true,
+                'phpdoc_summary' => true,
+                'phpdoc_tag_casing' => [
+                    'tags' => [
+                        'inheritDoc',
+                    ],
+                ],
+                'phpdoc_tag_type' => [
+                    'tags' => [
+                        'inheritdoc' => 'inline',
+                    ],
+                ],
+                'phpdoc_to_comment' => false,
+                'phpdoc_to_param_type' => false,
+                'phpdoc_to_property_type' => [
+                    'scalar_types' => true,
+                    'union_types' => true,
+                ],
+                'phpdoc_to_return_type' => false,
+                'phpdoc_trim' => true,
+                'phpdoc_trim_consecutive_blank_line_separation' => true,
+                'phpdoc_types' => [
+                    'groups' => [
+                        'alias',
+                        'meta',
+                        'simple',
+                    ],
+                ],
+                'phpdoc_types_order' => [
+                    'case_sensitive' => false,
+                    'null_adjustment' => 'always_first',
+                    'sort_algorithm' => 'alpha',
+                ],
+                'phpdoc_var_annotation_correct_order' => true,
+                'phpdoc_var_without_name' => true,
+                'pow_to_exponentiation' => true,
+                'protected_to_private' => true,
+                'psr_autoloading' => [
+                    'dir' => null,
+                ],
+                'random_api_migration' => [
+                    'replacements' => [
+                        'getrandmax' => 'mt_getrandmax',
+                        'rand' => 'mt_rand',
+                        'srand' => 'mt_srand',
+                    ],
+                ],
+                'regular_callable_call' => true,
+                'return_assignment' => true,
+                'return_to_yield_from' => true,
+                'return_type_declaration' => [
+                    'space_before' => 'none',
+                ],
+                'self_accessor' => true,
+                'self_static_accessor' => true,
+                'semicolon_after_instruction' => true,
+                'set_type_to_cast' => true,
+                'short_scalar_cast' => true,
+                'simple_to_complex_string_variable' => true,
+                'simplified_if_return' => false,
+                'simplified_null_return' => false,
+                'single_blank_line_at_eof' => true,
+                'single_class_element_per_statement' => [
+                    'elements' => [
+                        'const',
+                        'property',
+                    ],
+                ],
+                'single_import_per_statement' => [
+                    'group_to_single_imports' => true,
+                ],
+                'single_line_after_imports' => true,
+                'single_line_comment_spacing' => true,
+                'single_line_comment_style' => [
+                    'comment_types' => [
+                        'hash',
+                    ],
+                ],
+                'single_line_empty_body' => false,
+                'single_line_throw' => false,
+                'single_quote' => [
+                    'strings_containing_single_quote_chars' => false,
+                ],
+                'single_space_around_construct' => [
+                    'constructs_contain_a_single_space' => [
+                        'yield_from',
+                    ],
+                    'constructs_followed_by_a_single_space' => [
+                        'abstract',
+                        'as',
+                        'attribute',
+                        'break',
+                        'case',
+                        'catch',
+                        'class',
+                        'clone',
+                        'comment',
+                        'const',
+                        'const_import',
+                        'continue',
+                        'do',
+                        'echo',
+                        'else',
+                        'elseif',
+                        'enum',
+                        'extends',
+                        'final',
+                        'finally',
+                        'for',
+                        'foreach',
+                        'function',
+                        'function_import',
+                        'global',
+                        'goto',
+                        'if',
+                        'implements',
+                        'include',
+                        'include_once',
+                        'instanceof',
+                        'insteadof',
+                        'interface',
+                        'match',
+                        'named_argument',
+                        'namespace',
+                        'new',
+                        'open_tag_with_echo',
+                        'php_doc',
+                        'php_open',
+                        'print',
+                        'private',
+                        'protected',
+                        'public',
+                        'readonly',
+                        'require',
+                        'require_once',
+                        'return',
+                        'static',
+                        'switch',
+                        'throw',
+                        'trait',
+                        'try',
+                        'type_colon',
+                        'use',
+                        'use_lambda',
+                        'use_trait',
+                        'var',
+                        'while',
+                        'yield',
+                        'yield_from',
+                    ],
+                    'constructs_preceded_by_a_single_space' => [
+                        'use_lambda',
+                    ],
+                ],
+                'single_trait_insert_per_statement' => true,
+                'space_after_semicolon' => [
+                    'remove_in_empty_for_expressions' => false,
+                ],
+                'spaces_inside_parentheses' => [
+                    'space' => 'none',
+                ],
+                'standardize_increment' => true,
+                'standardize_not_equals' => true,
+                'statement_indentation' => [
+                    'stick_comment_to_next_continuous_control_statement' => false,
+                ],
+                'static_lambda' => true,
+                'strict_comparison' => true,
+                'strict_param' => true,
+                'string_implicit_backslashes' => [
+                    'double_quoted' => 'escape',
+                    'heredoc' => 'escape',
+                    'single_quoted' => 'ignore',
+                ],
+                'string_length_to_empty' => true,
+                'string_line_ending' => true,
+                'switch_case_semicolon_to_colon' => true,
+                'switch_case_space' => true,
+                'switch_continue_to_break' => true,
+                'ternary_operator_spaces' => true,
+                'ternary_to_elvis_operator' => true,
+                'ternary_to_null_coalescing' => true,
+                'trailing_comma_in_multiline' => [
+                    'after_heredoc' => false,
+                    'elements' => [
+                        'arguments',
+                        'array_destructuring',
+                        'arrays',
+                        'match',
+                        'parameters',
+                    ],
+                ],
+                'trim_array_spaces' => true,
+                'type_declaration_spaces' => [
+                    'elements' => [
+                        'function',
+                        'property',
+                    ],
+                ],
+                'types_spaces' => [
+                    'space' => 'none',
+                    'space_multiple_catch' => 'none',
+                ],
+                'unary_operator_spaces' => [
+                    'only_dec_inc' => false,
+                ],
+                'use_arrow_functions' => false,
+                'visibility_required' => [
+                    'elements' => [
+                        'const',
+                        'method',
+                        'property',
+                    ],
+                ],
+                'void_return' => true,
+                'whitespace_after_comma_in_array' => [
+                    'ensure_single_space' => true,
+                ],
+                'yield_from_array_to_yields' => false,
+                'yoda_style' => [
+                    'always_move_variable' => true,
+                    'equal' => true,
+                    'identical' => true,
+                    'less_and_greater' => true,
+                ],
+            ]),
+        );
+    }
+}
diff --git a/test/EndToEnd/RuleSet/Php84Test.php b/test/EndToEnd/RuleSet/Php84Test.php
new file mode 100644
index 00000000..c31c362e
--- /dev/null
+++ b/test/EndToEnd/RuleSet/Php84Test.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2019-2024 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/php-cs-fixer-config
+ */
+
+namespace Ergebnis\PhpCsFixer\Config\Test\EndToEnd\RuleSet;
+
+/**
+ * @coversNothing
+ *
+ * @requires PHP 8.4
+ */
+final class Php84Test extends AbstractRuleSetTestCase
+{
+}
diff --git a/test/Unit/RuleSet/Php84Test.php b/test/Unit/RuleSet/Php84Test.php
new file mode 100644
index 00000000..b6edf273
--- /dev/null
+++ b/test/Unit/RuleSet/Php84Test.php
@@ -0,0 +1,935 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2019-2024 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/php-cs-fixer-config
+ */
+
+namespace Ergebnis\PhpCsFixer\Config\Test\Unit\RuleSet;
+
+use Ergebnis\PhpCsFixer\Config\Fixers;
+use Ergebnis\PhpCsFixer\Config\Name;
+use Ergebnis\PhpCsFixer\Config\PhpVersion;
+use Ergebnis\PhpCsFixer\Config\Rules;
+use Ergebnis\PhpCsFixer\Config\RuleSet;
+use ErickSkrauch\PhpCsFixer;
+use PhpCsFixerCustomFixers\Fixer;
+
+/**
+ * @covers \Ergebnis\PhpCsFixer\Config\RuleSet\Php84
+ *
+ * @uses \Ergebnis\PhpCsFixer\Config\Factory
+ * @uses \Ergebnis\PhpCsFixer\Config\Fixers
+ * @uses \Ergebnis\PhpCsFixer\Config\Name
+ * @uses \Ergebnis\PhpCsFixer\Config\PhpVersion
+ * @uses \Ergebnis\PhpCsFixer\Config\PhpVersion\Major
+ * @uses \Ergebnis\PhpCsFixer\Config\PhpVersion\Minor
+ * @uses \Ergebnis\PhpCsFixer\Config\PhpVersion\Patch
+ * @uses \Ergebnis\PhpCsFixer\Config\Rules
+ * @uses \Ergebnis\PhpCsFixer\Config\RuleSet
+ */
+final class Php84Test extends ExplicitRuleSetTestCase
+{
+    protected static function createRuleSet(): RuleSet
+    {
+        return RuleSet\Php83::create();
+    }
+
+    protected function expectedCustomFixers(): Fixers
+    {
+        return Fixers::fromFixers(
+            new Fixer\MultilineCommentOpeningClosingAloneFixer(),
+            new Fixer\MultilinePromotedPropertiesFixer(),
+            new Fixer\NoDuplicatedArrayKeyFixer(),
+            new Fixer\NoDuplicatedImportsFixer(),
+            new Fixer\PhpdocTypesCommaSpacesFixer(),
+            new PhpCsFixer\Fixer\Whitespace\LineBreakAfterStatementsFixer(),
+        );
+    }
+
+    protected function expectedName(): Name
+    {
+        return Name::fromString('ergebnis (PHP 8.4)');
+    }
+
+    protected function expectedPhpVersion(): PhpVersion
+    {
+        return PhpVersion::create(
+            PhpVersion\Major::fromInt(8),
+            PhpVersion\Minor::fromInt(4),
+            PhpVersion\Patch::fromInt(0),
+        );
+    }
+
+    protected function expectedRules(): Rules
+    {
+        return Rules::fromArray([
+            'ErickSkrauch/line_break_after_statements' => true,
+            'PhpCsFixerCustomFixers/multiline_comment_opening_closing_alone' => true,
+            'PhpCsFixerCustomFixers/multiline_promoted_properties' => [
+                'keep_blank_lines' => false,
+                'minimum_number_of_parameters' => 2,
+            ],
+            'PhpCsFixerCustomFixers/no_duplicated_array_key' => [
+                'ignore_expressions' => true,
+            ],
+            'PhpCsFixerCustomFixers/no_duplicated_imports' => true,
+            'PhpCsFixerCustomFixers/phpdoc_types_comma_spaces' => true,
+            'align_multiline_comment' => [
+                'comment_type' => 'all_multiline',
+            ],
+            'array_indentation' => true,
+            'array_push' => true,
+            'array_syntax' => [
+                'syntax' => 'short',
+            ],
+            'assign_null_coalescing_to_coalesce_equal' => true,
+            'attribute_empty_parentheses' => [
+                'use_parentheses' => true,
+            ],
+            'backtick_to_shell_exec' => true,
+            'binary_operator_spaces' => [
+                'default' => 'single_space',
+                'operators' => [],
+            ],
+            'blank_line_after_namespace' => true,
+            'blank_line_after_opening_tag' => true,
+            'blank_line_before_statement' => [
+                'statements' => [
+                    'break',
+                    'case',
+                    'continue',
+                    'declare',
+                    'default',
+                    'do',
+                    'exit',
+                    'for',
+                    'foreach',
+                    'goto',
+                    'if',
+                    'include',
+                    'include_once',
+                    'phpdoc',
+                    'require',
+                    'require_once',
+                    'return',
+                    'switch',
+                    'throw',
+                    'try',
+                    'while',
+                    'yield',
+                    'yield_from',
+                ],
+            ],
+            'blank_line_between_import_groups' => false,
+            'blank_lines_before_namespace' => [
+                'max_line_breaks' => 2,
+                'min_line_breaks' => 2,
+            ],
+            'braces_position' => [
+                'allow_single_line_anonymous_functions' => false,
+                'allow_single_line_empty_anonymous_classes' => false,
+                'anonymous_classes_opening_brace' => 'same_line',
+                'anonymous_functions_opening_brace' => 'same_line',
+                'classes_opening_brace' => 'next_line_unless_newline_at_signature_end',
+                'control_structures_opening_brace' => 'same_line',
+                'functions_opening_brace' => 'next_line_unless_newline_at_signature_end',
+            ],
+            'cast_spaces' => [
+                'space' => 'single',
+            ],
+            'class_attributes_separation' => [
+                'elements' => [
+                    'case' => 'only_if_meta',
+                    'const' => 'only_if_meta',
+                    'method' => 'one',
+                    'property' => 'only_if_meta',
+                    'trait_import' => 'none',
+                ],
+            ],
+            'class_definition' => [
+                'inline_constructor_arguments' => true,
+                'multi_line_extends_each_single_line' => false,
+                'single_item_single_line' => false,
+                'single_line' => false,
+                'space_before_parenthesis' => false,
+            ],
+            'class_keyword' => false,
+            'class_reference_name_casing' => true,
+            'clean_namespace' => true,
+            'combine_consecutive_issets' => true,
+            'combine_consecutive_unsets' => true,
+            'combine_nested_dirname' => true,
+            'comment_to_phpdoc' => [
+                'ignored_tags' => [],
+            ],
+            'compact_nullable_type_declaration' => true,
+            'concat_space' => [
+                'spacing' => 'one',
+            ],
+            'constant_case' => [
+                'case' => 'lower',
+            ],
+            'control_structure_braces' => true,
+            'control_structure_continuation_position' => [
+                'position' => 'same_line',
+            ],
+            'date_time_create_from_format_call' => true,
+            'date_time_immutable' => true,
+            'declare_equal_normalize' => [
+                'space' => 'none',
+            ],
+            'declare_parentheses' => true,
+            'declare_strict_types' => true,
+            'dir_constant' => true,
+            'doctrine_annotation_array_assignment' => [
+                'ignored_tags' => RuleSet\Doctrine::IGNORED_TAGS,
+                'operator' => ':',
+            ],
+            'doctrine_annotation_braces' => [
+                'ignored_tags' => RuleSet\Doctrine::IGNORED_TAGS,
+                'syntax' => 'without_braces',
+            ],
+            'doctrine_annotation_indentation' => [
+                'ignored_tags' => RuleSet\Doctrine::IGNORED_TAGS,
+                'indent_mixed_lines' => false,
+            ],
+            'doctrine_annotation_spaces' => [
+                'after_argument_assignments' => false,
+                'after_array_assignments_colon' => true,
+                'after_array_assignments_equals' => false,
+                'around_commas' => true,
+                'around_parentheses' => true,
+                'before_argument_assignments' => false,
+                'before_array_assignments_colon' => false,
+                'before_array_assignments_equals' => false,
+                'ignored_tags' => RuleSet\Doctrine::IGNORED_TAGS,
+            ],
+            'echo_tag_syntax' => [
+                'format' => 'long',
+                'long_function' => 'echo',
+                'shorten_simple_statements_only' => true,
+            ],
+            'elseif' => true,
+            'empty_loop_body' => [
+                'style' => 'braces',
+            ],
+            'empty_loop_condition' => [
+                'style' => 'while',
+            ],
+            'encoding' => true,
+            'ereg_to_preg' => true,
+            'error_suppression' => [
+                'mute_deprecation_error' => true,
+                'noise_remaining_usages' => true,
+                'noise_remaining_usages_exclude' => [],
+            ],
+            'explicit_indirect_variable' => true,
+            'explicit_string_variable' => true,
+            'final_class' => true,
+            'final_internal_class' => [
+                'consider_absent_docblock_as_internal_class' => false,
+                'exclude' => [
+                    '@Entity',
+                    '@final',
+                    '@Mapping\\Entity',
+                    '@ORM\\Entity',
+                    '@ORM\\Mapping\\Entity',
+                ],
+                'include' => [
+                    '@internal',
+                ],
+            ],
+            'final_public_method_for_abstract_class' => true,
+            'fopen_flag_order' => true,
+            'fopen_flags' => [
+                'b_mode' => true,
+            ],
+            'full_opening_tag' => true,
+            'fully_qualified_strict_types' => false,
+            'function_declaration' => [
+                'closure_fn_spacing' => 'one',
+                'closure_function_spacing' => 'one',
+                'trailing_comma_single_line' => false,
+            ],
+            'function_to_constant' => [
+                'functions' => [
+                    'get_called_class',
+                    'get_class',
+                    'php_sapi_name',
+                    'phpversion',
+                    'pi',
+                ],
+            ],
+            'general_phpdoc_annotation_remove' => false,
+            'general_phpdoc_tag_rename' => [
+                'case_sensitive' => false,
+                'fix_annotation' => true,
+                'fix_inline' => true,
+                'replacements' => [
+                    'inheritdoc' => 'inheritdoc',
+                    'inheritdocs' => 'inheritdoc',
+                ],
+            ],
+            'get_class_to_class_keyword' => true,
+            'global_namespace_import' => [
+                'import_classes' => false,
+                'import_constants' => false,
+                'import_functions' => false,
+            ],
+            'group_import' => false,
+            'header_comment' => false,
+            'heredoc_closing_marker' => false,
+            'heredoc_indentation' => false,
+            'heredoc_to_nowdoc' => true,
+            'implode_call' => true,
+            'include' => true,
+            'increment_style' => [
+                'style' => 'pre',
+            ],
+            'indentation_type' => true,
+            'integer_literal_case' => true,
+            'is_null' => true,
+            'lambda_not_used_import' => true,
+            'line_ending' => true,
+            'linebreak_after_opening_tag' => true,
+            'list_syntax' => [
+                'syntax' => 'short',
+            ],
+            'logical_operators' => true,
+            'long_to_shorthand_operator' => true,
+            'lowercase_cast' => true,
+            'lowercase_keywords' => true,
+            'lowercase_static_reference' => true,
+            'magic_constant_casing' => true,
+            'magic_method_casing' => true,
+            'mb_str_functions' => true,
+            'method_argument_space' => [
+                'after_heredoc' => false,
+                'attribute_placement' => 'standalone',
+                'keep_multiple_spaces_after_comma' => false,
+                'on_multiline' => 'ensure_fully_multiline',
+            ],
+            'method_chaining_indentation' => true,
+            'modernize_strpos' => true,
+            'modernize_types_casting' => true,
+            'multiline_comment_opening_closing' => true,
+            'multiline_string_to_heredoc' => true,
+            'multiline_whitespace_before_semicolons' => [
+                'strategy' => 'no_multi_line',
+            ],
+            'native_constant_invocation' => [
+                'exclude' => [
+                    'false',
+                    'null',
+                    'true',
+                ],
+                'fix_built_in' => true,
+                'include' => [],
+                'scope' => 'all',
+                'strict' => false,
+            ],
+            'native_function_casing' => true,
+            'native_function_invocation' => [
+                'exclude' => [],
+                'include' => [
+                    '@internal',
+                ],
+                'scope' => 'all',
+                'strict' => false,
+            ],
+            'native_type_declaration_casing' => true,
+            'new_with_parentheses' => [
+                'anonymous_class' => true,
+                'named_class' => true,
+            ],
+            'no_alias_functions' => [
+                'sets' => [
+                    '@all',
+                ],
+            ],
+            'no_alias_language_construct_call' => true,
+            'no_alternative_syntax' => [
+                'fix_non_monolithic_code' => true,
+            ],
+            'no_binary_string' => true,
+            'no_blank_lines_after_class_opening' => true,
+            'no_blank_lines_after_phpdoc' => true,
+            'no_break_comment' => [
+                'comment_text' => 'no break',
+            ],
+            'no_closing_tag' => true,
+            'no_empty_comment' => true,
+            'no_empty_phpdoc' => true,
+            'no_empty_statement' => true,
+            'no_extra_blank_lines' => [
+                'tokens' => [
+                    'attribute',
+                    'break',
+                    'case',
+                    'continue',
+                    'curly_brace_block',
+                    'default',
+                    'extra',
+                    'parenthesis_brace_block',
+                    'return',
+                    'square_brace_block',
+                    'switch',
+                    'throw',
+                    'use',
+                ],
+            ],
+            'no_homoglyph_names' => true,
+            'no_leading_import_slash' => true,
+            'no_leading_namespace_whitespace' => true,
+            'no_mixed_echo_print' => [
+                'use' => 'echo',
+            ],
+            'no_multiline_whitespace_around_double_arrow' => true,
+            'no_multiple_statements_per_line' => true,
+            'no_null_property_initialization' => true,
+            'no_php4_constructor' => false,
+            'no_short_bool_cast' => true,
+            'no_singleline_whitespace_before_semicolons' => true,
+            'no_space_around_double_colon' => true,
+            'no_spaces_after_function_name' => true,
+            'no_spaces_around_offset' => [
+                'positions' => [
+                    'inside',
+                    'outside',
+                ],
+            ],
+            'no_superfluous_elseif' => true,
+            'no_superfluous_phpdoc_tags' => [
+                'allow_hidden_params' => false,
+                'allow_mixed' => true,
+                'allow_unused_params' => false,
+                'remove_inheritdoc' => false,
+            ],
+            'no_trailing_comma_in_singleline' => [
+                'elements' => [
+                    'arguments',
+                    'array',
+                    'array_destructuring',
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+                ],
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+            'php_unit_method_casing' => [
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+            ],
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+            'php_unit_namespaced' => [
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+            ],
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+            'php_unit_size_class' => false,
+            'php_unit_strict' => false,
+            'php_unit_test_annotation' => [
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+            ],
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+                'method' => 'multi',
+                'property' => 'multi',
+            ],
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+            'phpdoc_no_access' => true,
+            'phpdoc_no_alias_tag' => [
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+                    'property-read' => 'property',
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+                ],
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+            'phpdoc_no_package' => true,
+            'phpdoc_no_useless_inheritdoc' => true,
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+            'phpdoc_return_self_reference' => [
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+                        'deprecated',
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+                        'see',
+                        'since',
+                    ],
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+                        'copyright',
+                        'license',
+                    ],
+                    [
+                        'category',
+                        'package',
+                        'subpackage',
+                    ],
+                    [
+                        'property',
+                        'property-read',
+                        'property-write',
+                    ],
+                ],
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+            ],
+            'phpdoc_single_line_var_spacing' => true,
+            'phpdoc_summary' => true,
+            'phpdoc_tag_casing' => [
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+                    'inheritDoc',
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+            'phpdoc_tag_type' => [
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+                    'inheritdoc' => 'inline',
+                ],
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+            'phpdoc_to_param_type' => false,
+            'phpdoc_to_property_type' => [
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+                'union_types' => true,
+            ],
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+            'phpdoc_trim' => true,
+            'phpdoc_trim_consecutive_blank_line_separation' => true,
+            'phpdoc_types' => [
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+                    'meta',
+                    'simple',
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+                'null_adjustment' => 'always_first',
+                'sort_algorithm' => 'alpha',
+            ],
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+            'phpdoc_var_without_name' => true,
+            'pow_to_exponentiation' => true,
+            'protected_to_private' => true,
+            'psr_autoloading' => [
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+            ],
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+                    'rand' => 'mt_rand',
+                    'srand' => 'mt_srand',
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+                    'while',
+                    'yield',
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+                ],
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+            ],
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+            'standardize_not_equals' => true,
+            'statement_indentation' => [
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+            ],
+            'static_lambda' => true,
+            'strict_comparison' => true,
+            'strict_param' => true,
+            'string_implicit_backslashes' => [
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+                'heredoc' => 'escape',
+                'single_quoted' => 'ignore',
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+            'string_line_ending' => true,
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+            'switch_continue_to_break' => true,
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+            'ternary_to_null_coalescing' => true,
+            'trailing_comma_in_multiline' => [
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+                'elements' => [
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+                    'parameters',
+                ],
+            ],
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+            'type_declaration_spaces' => [
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+                    'function',
+                    'property',
+                ],
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+                'space_multiple_catch' => 'none',
+            ],
+            'unary_operator_spaces' => [
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+            ],
+            'use_arrow_functions' => false,
+            'visibility_required' => [
+                'elements' => [
+                    'const',
+                    'method',
+                    'property',
+                ],
+            ],
+            'void_return' => true,
+            'whitespace_after_comma_in_array' => [
+                'ensure_single_space' => true,
+            ],
+            'yield_from_array_to_yields' => false,
+            'yoda_style' => [
+                'always_move_variable' => true,
+                'equal' => true,
+                'identical' => true,
+                'less_and_greater' => true,
+            ],
+        ]);
+    }
+}