If you are an experienced Joomla! 15 user, this Joomla site will seem very familiar. There are new templates and improved user interfaces, but most functionality is the same. The biggest changes are improved access control (ACL) and nested categories. This release of Joomla has strong continuity with Joomla! 17 while adding enhancements. Lire la suite : Upgraders. Lire la suite : Professionals.