Now, Joomla! 2.5 is the current long-term support (LTS) release. September 2014 will be available Joomla 3.5 release with LTS

  • Available! Version 2.5: March 2012 (LTS release)
  • Available! Version 3.0: September 2012
  • Available! Version 3.1: March 2013
  • Available! Version 3.2: September 2013
  •                   Version 3.3: March 2014
  •                   Version 3.4: July 2014
  •                   Version 3.5: September 2014 (LTS release)