Compatibility Plugin

Joomla 5 Compatibility Plugin

As part of Joomla! 5.0 a plugin was introduced which enhance backward compatibility between Joomla 5 and 4. The plugin is implemented as "Behaviour" plugin type to guarantee that is loaded before any other plugin is loaded.

Developer Note

Heads-up, don't create a plugin as behaviour plugin because it's possible that this group get removed at some point.

For more detail check Compatibility Plugin Joomla! 5.0.