Breaking: #107712 - New method hasSubmoduleOverview() in ModuleInterface 

Description 

The interface \TYPO3\CMS\Backend\Module\ModuleInterface has been extended with a new method hasSubmoduleOverview() to support the new card-based submodule overview feature introduced in Feature: #107712 - Introduce card-based submodule overview.

Impact 

All custom implementations of \TYPO3\CMS\Backend\Module\ModuleInterface must now implement the new method hasSubmoduleOverview(): bool.

Existing implementations that do not implement this method will trigger a PHP fatal error.

Affected installations 

TYPO3 installations with custom PHP code that directly implement the ModuleInterface are affected.

This is uncommon, as most backend modules use the provided \TYPO3\CMS\Backend\Module\Module class or extend from \TYPO3\CMS\Backend\Module\BaseModule .

Migration 

Add the hasSubmoduleOverview() method to your custom implementation of ModuleInterface .

The method should typically return the configured value rather than a fixed boolean:

use TYPO3\CMS\Backend\Module\ModuleInterface;

class MyCustomModule implements ModuleInterface
{
    protected array $configuration = [];

    public function hasSubmoduleOverview(): bool
    {
        // Return the configured value, defaulting to false
        return $this->configuration['showSubmoduleOverview'] ?? false;
    }
}

This allows the behavior to be controlled through the module's configuration.