---
title: "Deprecation: #73514 - IncludeLibrary Methods"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-73514"
source: "Changelog/8.0/Deprecation-73514-IncludeLibraryMethods.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Deprecation: #73514 - IncludeLibrary Methods

See [forge#73514](https://forge.typo3.org/issues/73514)

## Description

The PHP methods `TYPO3CMSFrontendControllerTypoScriptFrontendController->includeLibraries()`
and `TYPO3CMSFrontendContentObjectContentObjectRenderer->includeLibs()`
to include PHP libraries during frontend output have been marked as deprecated.

## Impact

Calling any of the methods above will trigger a deprecation log entry.

## Affected Installations

Any installation using custom Frontend output modified via PHP and TypoScript through e.g. a custom CType
provided by a special extension.

## Migration

Use proper object orientation and class loading methods to load code in the Frontend when necessary.