---
title: "Breaking: #72417 - Removed old locking API"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-72417"
source: "Changelog/8.0/Breaking-72417-RemovedOldLockingAPI.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #72417 - Removed old locking API

See [forge#72417](https://forge.typo3.org/issues/72417)

## Description

The old locking mechanism was replaced by a more sophisticated a robust LockFactory,
and is now completely removed from the TYPO3 Core.

## Impact

Using the `Locker` class will result in a fatal error. The option `$TYPO3_CONF_VARS[SYS][lockingMode]` has
no effect anymore.