Important: #95647 - Composer installations and extension usage¶
With forge#94996 the behavior for Composer-based installations has changed.
ext_emconf.php file which is located in the extensions' base folder,
is not evaluated anymore in Composer-based installations. This means, the
ordering of the extensions and their dependencies are now loaded from the
composer.json file, instead of
For non-Composer installation ("Classic Mode") the
ext_emconf.php file is the
source of truth for required dependencies and the loading order of active
Extension authors should ensure that the information in the
file is in sync with the one in the extensions'
This is especially important regarding constraints like
suggests. Use the equivalent settings in
suggest to set dependencies and ensure a specific loading order.
It is recommended to keep
any public extension that is published to TYPO3 Extension Repository (TER), and
to ensure optimal compatibility with Composer-based installations and Classic
typo3conf/PackageStates.php file is not evaluated anymore in
Composer-based installations. When updating TYPO3 installations that still
contain this file e.g. under version control, the file can safely be removed.
Use the TYPO3 CLI command
extension:setup to set up all extensions
available in Composer.
Package information (like paths or extension meta data) is still stored in and evaluated from
a file in Composer's
vendor folder. This file is written after Composer dumps autoload information.
Make sure all files from that (
vendor) folder are transferred during a deployment.
This means no special action compared to previous TYPO3 versions is required regarding the
with TYPO3 11 LTS.
TYPO3 version 11.5.0 to 11.5.2 stored package information in
which previously required this folder to be transferred as well during a deployment.
This is not required any more now. Transferring the
vendor folder is sufficient now.
All extensions are always active¶
All extensions and their dependant extensions required via Composer in a Composer-based TYPO3 installation are always activated. It is not possible to disable an extension by using the Extension Manager anymore.
The TYPO3 CLI command
extension:setup can be used after each
composer require or
composer update command to update the database schema
and other important actions usually done when previously activating an extension
in the Extension Manager.