DirectX 9.0 has been with us since December 2002 and we have seen some good progress made since its inception and it was always on the cards of a new release before too long. DirectX 10, the newest release of DirectX family is only available with Windows Vista and there isn't a version released for Windows XP . The main reason for this is the new driver model designed by Microsoft. Microsoft claims that the Windows Display Driver Model (WDDM) has been splitted into two key components: User Mode Driver (UMD) and Kernel Mode Driver (KMD) to achieve unprecedented stability and performance.
The new DirectX hasn't been named Windows Graphic Foundation (WGF) as it was planned and remains at the old name, as in DirectX. This new API is said to be composed of new and faster dynamic link libraries (DLLs) for optimised performance.

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