Deprecation: #107813 - Deprecate MetaInformation API in DocHeader 

Description 

The \TYPO3\CMS\Backend\Template\Components\MetaInformation class and related methods in \TYPO3\CMS\Backend\Template\Components\DocHeaderComponent have been deprecated in favor of the new breadcrumb component architecture.

The following have been marked as deprecated:

• DocHeaderComponent::setMetaInformation()
• DocHeaderComponent::setMetaInformationForResource()
• MetaInformation class

These APIs were previously used to display page navigation paths in the backend document header. This functionality is now handled by the breadcrumb component, which provides richer context and better navigation capabilities.

Impact 

Calling any of the deprecated methods will trigger a PHP E_USER_DEPRECATED error.

The MetaInformation class is now marked as @internal and should not be used in extensions.

Affected installations 

All installations using custom backend modules that call:

• $view->getDocHeaderComponent()->setMetaInformation($pageRecord)
• $view->getDocHeaderComponent()->setMetaInformationForResource($resource)

or any custom code relying on the MetaInformation class.

The Extension Scanner will detect usage of the deprecated methods and classes, making it easy to identify code that needs to be updated.

Migration 

Replace calls to the deprecated methods with the new convenience methods on DocHeaderComponent .

Before:

use TYPO3\CMS\Backend\Template\Components\DocHeaderComponent;

// For page records
$view->getDocHeaderComponent()->setMetaInformation($pageInfo);

// For file or folder resources
$view->getDocHeaderComponent()->setMetaInformationForResource($resource);

After:

use TYPO3\CMS\Backend\Template\Components\DocHeaderComponent;

// For page records
$view->getDocHeaderComponent()->setPageBreadcrumb($pageInfo);

// For file or folder resources
$view->getDocHeaderComponent()->setResourceBreadcrumb($resource);

An additional convenience method is available for records:

use TYPO3\CMS\Backend\Template\Components\DocHeaderComponent;

// For any record type (by table and UID)
$view->getDocHeaderComponent()->setRecordBreadcrumb('tt_content', 123);

For advanced scenarios requiring custom breadcrumb logic (such as conditional context selection based on controller state), see the implementation in \TYPO3\CMS\Backend\Controller\EditDocumentController , which uses \TYPO3\CMS\Backend\Breadcrumb\BreadcrumbFactory directly with setBreadcrumbContext().