This file documents conflicts defined in composer.json.
Incompatible with PHP_CodeSniffer 4.x due to a changed method signature in PHPCS 4, causing fatal errors:
Fatal error: Declaration of ... must be compatible with ...
ECS 13.1.3 introduced a BC break that affected all of our CIs. The release ships a bundled friendsofphp/php-cs-fixer with PhpCsFixer\Console\Application removed from the prefixed vendor tree, while ConfigurableFixerTrait still imports it. Configuring any fixer that has a deprecated option triggers the deprecation path and fails with:
PHP Fatal error: Uncaught Error: Class "PhpCsFixer\Console\Application" not found
in vendor/symplify/easy-coding-standard/vendor/friendsofphp/php-cs-fixer/src/Fixer/ConfigurableFixerTrait.php