Mac OS X 10.0 (Cheetah) was released March 24, 2001. Mac OS X 10.1 (Puma) was released September 25, 2001. Mac OS X 10.2 (Jaguar) was released August 23, 2002. Mac OS X 10.3 (Panther) was released October 24, 2003. Mac OS X 10.4 (Tiger) was released April 29, 2005. Mac OS X 10.5 (Leopard) was released October 26, 2007
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