Help:Upgrade/Switching to native Composer support

Switching to native Composer support
As documented on the Upgrade from SMW 1.9.x or later to SMW 2.1.x (MW 1.19.0 to MW 1.21.x) page the "Extension Installer" extension is only required for MediaWiki 1.19.x to MW 1.21.x since these versions of MediaWiki do not natively support Composer. Thus you will have to adapt the way to upgrade and update Semantic MediaWiki after upgrading to MediaWiki 1.22+:

These instructions deliberately do not involve an upgrade of Semantic MediaWiki. If a newer version is available than the one used prior to the switch described above when do the upgrading in a second step.
 * 1) Backup your database and installation.
 * 2) Move the "composer.json" file from the   directory to the base directory of your MediaWiki installation.
 * 3) Delete the directories ,   and   from within the   directory as well as the directories of the extensions which were also previously installed using the "Extension Installer" extension, e.g. Semantic Results Formats, etc. if applicable. See the "composer.json" file for the list of these extensions.
 * 4) Run the update script from the base directory of your MediaWiki installation:
 * 5) See the page "Special:Version" on your wiki to verify that the extension(s) was/were successfully installed.
 * 6) Delete the directory   from within the   directory
 * 7) Remove the following line from the "LocalSettings.php" file:
 * 8) Done!