Have been deprecated in Version 1.7 and will no longer work in Version 2.0.
Use the Front end module and from version 2.0 the new content element instead.
Have been deprecated in Version 1.17 and will no longer work in Version 2.x. for Contao 6.
From version 2.0.0 onwards, there is a content element as a replacement parallel to the Front end module.