Snow Leopard was publicly unveiled on Jat the Apple Worldwide Developers Conference.Ī preview of Mac OS X 10.7 Lion was publicly shown at the “Back to the Mac” Apple Special Event on October 20, 2010. Mac OS X Snow Leopard (version 10.6) is the seventh major release of Mac OS X (now named macOS), Apple's desktop and server operating system for Macintosh computers. Mac OS X Lion (version 10.7) is the eighth major release of Mac OS X (now named macOS), Apple’s desktop and server operating system for Macintosh computers.
