promotion on SEO History Sponsor Link Free Auto Backlink Joomla Version history Joomla 1.0 was released on September 22, 2005 as a re-branded release of Mambo 4.5.2.3 that combined other bug and moderate-level security fixes. Joomla 1.5 was released on January 22, 2008. The latest release of this version was 1.5.26