Installation of system extension lowlevel

Installation with Composer

Check whether you are already using the extension with:

composer show | grep lowlevel

This should either give you no result or something similar to:

typo3/cms-lowlevel       v12.4.11

If it is not installed yet, use the composer require command to install the extension:

composer require typo3/cms-lowlevel

The given version depends on the version of the TYPO3 Core you are using.

Installation in classic mode

In a classic-mode installation (without Composer), the extension is already shipped but might not be activated yet. Activate it as follows:

1. In the backend, navigate to the Admin Tools > Extensions module.
2. Click the Activate icon for the Lowlevel extension.