GNU Go
GNU Go 1.1 March 13 1989. GNU Go 1.2 1995. GNU Go 2.0 April 20, 1999. GNU Go 2.4 September 12, 1999. GNU Go 2.6 February 13, 2000. GNU Go 3.0 August 24, 2001. GNU Go 3.2 April 25, 2002. GNU Go 3.4 July 31, 2003. GNU Go 3.6 November 17, 2004. GNU Go 3.8 February 19, 2009.(最新安定版)