Breaking: #107777 - Use strict types in Extbase class Argument 

See forge#107777

Description 

All properties, method arguments, and return types in \TYPO3\CMS\Extbase\Mvc\Controller\Argument are now strictly typed.

Impact 

Classes extending Argument must now ensure that all overridden properties, method arguments, and return types declare strict types accordingly.

Affected installations 

TYPO3 installations with custom classes extending Argument .

Migration 

Ensure all subclasses of Argument use strict type declarations for overridden properties, method parameters, and return types.