---
title: "Deprecation: #102581 - Unused Interface for ContentObjectRenderer hook"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-102581-1701449501"
source: "Changelog/13.0/Deprecation-102581-UnusedInterfaceForContentObjectRendererHook.rst"
typo3-version: "13.0"
typo3-major: 13
type: "deprecation"
issue: 102581
forge: "https://forge.typo3.org/issues/102581"
tags: ["Frontend", "PHP-API", "FullyScanned", "ext:frontend"]
rendered: "2026-10-03T08:19:36+00:00"
---

# Deprecation: #102581 - Unused Interface for ContentObjectRenderer hook {#deprecation-102581-1701449501}

See [forge#102581](https://forge.typo3.org/issues/102581)

## Description {#description}

To use the `$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_content.php']['postInit']`
hook, implementations had to implement `\TYPO3\CMS\Frontend\ContentObject\ContentObjectPostInitHookInterface`.
Since the mentioned hook has been [removed](https://docs.typo3.org/permalink/changelog:breaking-102581-1701449553),
the interface is not in use anymore and has been marked as deprecated.

## Impact {#impact}

Using the interface has no effect anymore and the extension scanner will
report any usage.

## Affected installations {#affected-installations}

TYPO3 installations using the PHP interface in custom extension code.

## Migration {#migration}

The PHP interface is still available for TYPO3 v13, so extensions can
provide a version which is compatible with TYPO3 v12 (using the hook)
and TYPO3 v13 (using the new [PSR-14 event](https://docs.typo3.org/permalink/changelog:feature-102581-1701449291)),
at the same time. Remove any usage of the PHP interface and use the new PSR-14
event to avoid any further problems in TYPO3 v14+.