Joomla! 5.3 is the current supported release of the 5.x series. This is the fourth version of the 5 release and introduces new functionality.

Joomla! 5.4 is the next minor release of the 5.x series. This is the fourth and last minor version of the 5 release. In preparation for Joomla! 6.x, Joomla! 5.4 is primarily a release containing backports of API changes from the 6.x to help ease the transition to the next major release for the community.