Four years ago, Joomla! Project was born and released Joomla! 1.0 on September 16, 2005. During these years, Joomla! quickly grows into a popular open source CMS attracting users from all over the world. Joomla! 1.0.x series has accumulated more than 1.6 million downloads on JoomlaCode site alone with more downloads on now defunct Joomla! Forge site.
As Joomla! 1.5.x series becomes the main stream release, the era of Joomla! 1.0.x has come to an end. Starting from July 22, 2009, the official support for Joomla! 1.0.x is no longer provided. Many extensions also have reduced or stopped updates for this widely used version.
Even though Joomla! 1.0.x is fading into history, you can still find it and its vast collection of extensions on JoomlaCode site. You can still utilize them to build great Web sites. Just keep in mind that its support has been terminated, and unlikey any new extensions will be coming for Joomla! 1.0.x.