Mac OS X Snow Leopard (10.6) is the seventh major release of Mac OS X, Apple's desktop and server operating system for Macintosh computers.
Mac OS X Snow Leopard (version 10.6) is the seventh major release of Mac OS X, Apple's desktop and server operating system for Macintosh computers. It was released in August 2009, preceded by osx-leopard and succeeded by osx-lion in July 2011.