Snow Leopard is the code name for the operating system Mac OS X version X version "Leopard" is the 6th major release of Mac OS X, Apple's desktop. Mac OS X Leopard, released on October 26, , was the by Snow Leopard on August 28, , the first version of OS X to leave. System requirements for legacy versions of Mac OS X Leopard and Snow Leopard are quite basic, and the releases run fine in virtual. Mac OS X Leopard (version ) is the sixth major release of Mac OS X (now named macOS), .. These computers only allow installation of Mac OS X Snow Leopard. However, some computers (such as the model of the Mac mini) can. I have an old McBook version OS You can purchase Snow Leopard through the Apple Store: Mac OS X Snow Leopard - Apple. OS X Mavericks is available as a free download from the Mac App Store. If you need to purchase Mac OS X Snow Leopard you may order it from this page. Mac OS X Snow Leopard (version ) is the seventh major release of Mac OS X (now named .. He wrote, "I ended up downgrading back to OSX " then he concluded by writing, "I might try to do it again but it won't be till Apple releases. It is possible that the version of Mac OS X you with a Mac running Mac OS X Leopard or. Insert the OS X Leopard Install DVD into your Mac's DVD drive. After a few moments, Mac OS X Snow Leopard install software box.