New and noteworthy version descriptions: Version 2.4: June 2010 Version 2.3: March 2010 Version 2.2: September 2009 Version 2.1: July 2009 Version 2.0: March 2007 Version 1.2.0: September 12, 2006 Version 1.1.8: March 2006 Version 1.1.7: November 2005