---
title: "Breaking: #82433 - Install Tool entry point removed"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-82433"
source: "Changelog/9.0/Breaking-81951-InstallToolEntryPointRemoved.rst"
modified: "2026-09-14T09:47:36+00:00"
---

# Breaking: #82433 - Install Tool entry point removed

See [forge#82433](https://forge.typo3.org/issues/82433)

## Description

The canonical entry point for accessing the install tool now is `typo3/install.php`. The previous entrypoint
located in `typo3/sysext/install/Start/Install.php` has been removed. The deprecated entrypoint located under
`typo3/install/index.php` still exists, but `typo3/install.php` is the new way to access the install tool,
available since TYPO3 8 LTS.

## Impact

Accessing `typo3/sysext/install/Start/Install.php` will trigger a Server-based "Page Not Found" error message.

## Affected Installations

Every TYPO3 installation using the old entry point is affected.

## Migration

Change bookmarks or scripts from the old entry point to the new one.