.. include:: /Includes.rst.txt

.. _breaking-97450:

=================================================================
Breaking: #97450 - Removed hook for modifying version differences
=================================================================

See :issue:`97450`

Description
===========

The hook :php:`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['workspaces']['modifyDifferenceArray']`
has been removed in favor of a new PSR-14 event :php:`\TYPO3\CMS\Workspaces\Event\ModifyVersionDifferencesEvent`.

Impact
======

Any hook implementation registered is not executed anymore in
TYPO3 v12.0+. The extension scanner will report possible usages.

Affected Installations
======================

All TYPO3 installations using this hook in custom extension code.

Migration
=========

The hook is removed without deprecation in order to allow extensions
to work with TYPO3 v11 (using the hook) and v12+ (using the new event).

Use the :doc:`PSR-14 event <../12.0/Feature-97450-PSR-14EventForModifyingVersionDifferences>`
as an improved replacement.

.. index:: Backend, PHP-API, FullyScanned, ext:backend