XenForo is a commercial Internet forum software package written in the PHP scripting language. The software was developed by former vBulletin leading developers Kier Darby and Mike Sullivan. The first public beta version of XenForo was released in October 2010, and its stable version was released on March 8, 2011. The program includes several search engine optimization (SEO) features. It is the best in the market.
The version in this source is the latest version 2.2.4.