Starting with Joomla 6 onwards the new MVCT-Architecture is mandatory for Joomla components to work. By then the old „Legacy“ MVC-Architecture will removed from the core.

The first Joomla-Version supporting the new architecture is Joomla 3.10. The last Joomla-Version supporting the old architecture is Joomla 5.x.

The new MVCT-Architecture for Joomla! components can be illustrated as follows:

Whereby the php files (Controller, Model, View, Table and Template) are automatically loaded and the classes initialized on the PSR4 standard for Namespacing and folder structure.