Mac OS-X Versions

Mac OS X Version Information
Version Codename Date Announced Release Date Most Recent Version
Rhapsody Developer Release Grail1Z4 / Titan1U August 31, 1997 May 14, 1998
Mac OS X Server 1.0 Hera March 16, 1999 1.2v3 (October 27, 2000)
Public Beta Kodiak September 13, 2000
10.0 Cheetah March 24, 2001 10.0.4 (June 22, 2001)
10.1 Puma July 18, 2001[69] September 25, 2001 10.1.5 (June 6, 2002)
10.2 Jaguar May 6, 2002[70] August 24, 2002 10.2.8 (October 3, 2003)
10.3 Panther June 23, 2003[71] October 24, 2003 10.3.9 (April 15, 2005)
10.4 Tiger May 4, 2004[72] April 29, 2005 10.4.11 (November 14, 2007)
10.5 Leopard June 26, 2006[73] October 26, 2007 10.5.8 (August 5, 2009)
10.6 Snow Leopard June 9, 2008[74] August 28, 2009 10.6.8 (June 23, 2011)
10.7 Lion October 20, 2010[75] July 20, 2011 10.7.1 (August 16, 2011)
10.8 Mountain Lion July 25, 2012 10.8

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