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Configurable

FileSystemBasenameToNativeRector

Replace deprecated FileSystemInterface::basename() calls with PHP native basename()

-$fileSystem->basename($uri, $suffix);
+basename($uri, $suffix);

Configure your rector.php:

<?php

use DrupalRector\Drupal11\Rector\Deprecation\FileSystemBasenameToNativeRector;
use DrupalRector\Rector\ValueObject\DrupalIntroducedVersionConfiguration;
use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withConfiguredRule(FileSystemBasenameToNativeRector::class, [
        new DrupalIntroducedVersionConfiguration('11.3.0'),
    ]);