macOS By lalomilanes Mar 24, 2001 10.0 Cheetah Sep 25, 2001 10.1 Puma Aug 24, 2002 10.2 Jaguar Oct 24, 2003 10.3 Panther Apr 25, 2005 10.4 Tiger Oct 26, 2007 10.5 Leopard Aug 28, 2009 10.6 Snow Leopard Jul 20, 2011 10.7 Lion Jul 25, 2012 10.8 Mountain Lion Oct 22, 2013 10.9 Mavericks Oct 16, 2014 10.10 Yosemite Sep 30, 2015 10.11 El Capitan Sep 20, 2016 10.12 Sierra 2017 10.13 High Sierra