Breaking: #102440 - EXT:t3editor merged into EXT:backend

See forge#102440


TYPO3 comes with a code editor extension called "t3editor" for a long time. Since then, the extension was always optional. When the extension is installed, selected text areas are converted to code editors based on CodeMirror.

The optional extension has been merged into EXT:backend, making the code editor always available.


An integrator cannot optionally install the code editor anymore as it's part of the mandatory "backend" extension now.

By default, this affects the following occurrences:

  • TCA: be_groups.TSconfig

  • TCA: be_users.TSconfig

  • TCA: pages.TSconfig

  • TCA: sys_template.constants

  • TCA: sys_template.config

  • TCA: tt_content.bodytext, if the content element is of type "HTML"

  • EXT:filelist: edit file content

  • Composer status view in Extension Manager

Also, checks whether the extension is installed via \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('t3editor') are now obsolete.

Affected installations

All installations are affected.


Extension checks using \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('t3editor') don't have an effect anymore and must get removed.

In addition, please see Deprecation: #102440 - EXT:t3editor merged into EXT:backend.