Subject to the terms and conditions of this License ...

updating an old os-50

On the other hand, some Apple press materials appear to indicate that this version is, in fact, the "Single Use" license: However, even if the retail edition of Snow Leopard is in fact a "Leopard Upgrade", the company has acknowledged that there is no technical barrier in that edition preventing a direct upgrade from Mac OS X "Tiger".

and the installation discs provided through this program are clearly marked as upgrades unlike either of the retail editions.

Mac OS X Snow Leopard is intended to be a release aimed to refine the existing feature set, expand the technological capabilities of the operating system, and improve application efficiency.

Many of the changes involve how the system works in the background and are not intended to be seen by the user.

Furthermore, there are new Apple wallpaper sub-folders with multiple wallpapers: New solid colors can be used as wallpapers as well.

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.Addition of new end-user features was not a primary consideration: its name signified its goal to be a refinement of the previous OS X version, Leopard.Much of the software in Mac OS X was extensively rewritten for this release in order to take advantage fully of modern Macintosh hardware.New programming frameworks, such as Open CL, were created, allowing software developers to use graphics cards in their applications.This is also the first Mac OS release since System 7.1.1 that does not support Macs using Power PC processors, as Apple now intends to focus on its current line of Intel-based products.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.