In PHP 8.4, declaring functions/methods with parameters containing null as a default value, but without null as one of the types (either as a nullable syntax or as a Union type with null) is deprecated.
https://php.watch/versions/8.4/implicitly-marking-parameter-type-nullabl...
phpcs --standard=SlevomatCodingStandard --sniffs=SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue
FILE: /app/docroot/modules/contrib/devel_entity_updates/src/DevelEntityDefinitionUpdateManager.php
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FOUND 2 ERRORS AFFECTING 1 LINE
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191 | ERROR | [x] Parameter $storage_definition has null default value, but is not marked as nullable.
191 | ERROR | [x] Parameter $original_storage_definition has null default value, but is not marked as nullable.
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Needs work
4.2
Base system
The merge request should have its target switched to 5.0.x. If desired, once merged, this can be cherry-picked onto 4.2.x.