Leopard not updating
There is a new blue and gray, as well as a solid kelp which serves as the "green wallpaper." The default "space nebula" wallpaper has been updated as well.Since then, Apple has continued to sell Snow Leopard from its online store for the benefit of users that require Snow Leopard in order to upgrade to later versions of OS X, which have all been distributed through the Mac App Store introduced in the Snow Leopard 10.6.6 update. Although Snow Leopard has been officially out of support since 2014, it remains available for purchase both on Apple's App Store, and in the form of boxed DVD-ROMs available through Apple's online store.Snow Leopard does not support Power PC-based Macs (e.g., Power Macs, Power Books, i Books, i Macs (G3-G5), all e Macs, plus pre-February 2006 Mac minis and the Power Mac G4 Cube), although Power PC applications are supported via Rosetta, which is now an optional install.Snow Leopard is available as an upgrade for Intel-based Macintosh computers.
Single-user licenses and "family pack" licenses for up to five computers are available.
Mac OS X Tiger added limited support for 64-bit applications on machines with 64-bit processors; Leopard extended the support for 64-bit applications to include applications using most of Mac OS X's libraries and frameworks.