---
title: "Deprecation: #78222 - Late generation of autoload information is deprecated"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-78222"
source: "Changelog/8.4/Deprecation-78222-LateGenerationOfAutoloadInformationIsDeprecated.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Deprecation: #78222 - Late generation of autoload information is deprecated

See [forge#78222](https://forge.typo3.org/issues/78222)

## Description

If TYPO3 is in non-composer mode, it used to automatically dump extension class
loading information late during the bootstrap. This behavior is now deprecated.

## Impact

TYPO3 installations in non-composer mode, now trigger a deprecation log entry
in case extension autoload information is missing late in the bootstrap.

## Affected Installations

TYPO3 installations in non-composer mode with deleted extension autoload information.

## Migration

Class loading information can be re-dumped by

-   Activating or deactivating an extension
-   Running the dump command from the command line
-   In install tool (important actions)

The autoload files should never be deleted, but always only be re-dumped.