# Requirements and compatibility

In order to work, XT Perfect SEO Pagination (opens new window) requires the following server software environment:

  • Joomla! 3.9, Joomla! 4, or superior. Please, download the latest version at Joomla! (opens new window).
  • PHP 7.2, or superior - General-purpose server-side scripting language for web development and a popular open-source database system.