---
title: "Breaking: #72022 - Removed class loading fallback in cObject"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-72022"
source: "Changelog/8.0/Breaking-72022-RemovedClassLoadingFallbackInCObject.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #72022 - Removed class loading fallback in cObject

See [forge#72022](https://forge.typo3.org/issues/72022)

## Description

The method `ContentObjectRenderer->isClassAvailable()` was used internally to check for a TypoScript property
`plugin.tx_myextension_pi1.includeLibs` that included a PHP file when `class_exists()` failed.

With TYPO3 CMS 7, the spl_autoload mechanism checks for all places within extensions, alternatively composer does this
on build-time. All needed classes are known, making this check and the option obsolete.

The functionality was introduced in TYPO3 4.3 before autoloading was available,
and has now been removed.

## Impact

The option `.includeLibs` on a plugin TypoScript object has no effect anymore.