---
title: "Breaking: #72405 - Removed traditional BE modules handling"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-72405"
source: "Changelog/8.0/Breaking-72405-RemovedTraditionalBEModulesHandling.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #72405 - Removed traditional BE modules handling

See [forge#72405](https://forge.typo3.org/issues/72405)

## Description

The traditional way of registering backend modules done via custom `mod1/index.php` and `mod1/conf.php` has been removed.

## Impact

Calling `ExtensionManagementUtility::addModulePath()` will result in a fatal error. Additionally, all modules that
are registered via `ExtensionManagementUtility::addModule()` and setting a path will not be registered properly
anymore.

`$TBE_MODULES['_PATHS']` is always empty now. Additionally, the options `script` and `navFrameScript` and
`navFrameScriptParam` will have no effect anymore when registering a module.

## Affected Installations

Any installation using an extension that registers a module via the traditional way using standalone scripts.

## Migration

Use the option `routeTarget` when registering a module, and PSR-7 equivalent entry-points in module controllers.