Leopard is the final version of macOS to support the PowerPC architecture as Snow Leopard functions solely on Intel based Macs.Īccording to Apple, Leopard contains over 300 changes and enhancements compared to its predecessor, Mac OS X Tiger, covering core operating system components as well as included applications and developer tools. Leopard was superseded by Snow Leopard (version 10.6) in 2009. It retailed for $129 for the desktop version and $499 for Server. Leopard was released on Octoas the successor of Mac OS X 10.4 Tiger, and is available in two editions: a desktop version suitable for personal computers, and a server version, Mac OS X Server. Mac OS X Leopard (version 10.5) is the sixth major release of macOS, Apple's desktop and server operating system for Macintosh computers.