DirectX team recently released its DirectX End-User-Runtimes for August 2009. This multilingual update contains the first official release of the DirectX developer resources for Direct3D 11, DXGI 1.1, Direct2D, and DirectWrite. Developers can now publish and distribute Direct3D 11 applications and games that leverage all of the software and hardware features of DirectX 11 in Windows 7 and Windows Vista.
Additionally, the new Effects runtime for Direct3D 11 is now available as well as the D3DCSX library, which includes new technologies for utilizing DirectCompute for advanced processing on the GPU. This first version includes implementations of scan and Fast-Fourier transform that utilize Direct3D 11 capable GPUs. For software developers, the August 2009 DirectX SDK can be found here
This DirectX end-user-runtime package includes security and performance updates for the core API interface between multimedia and gaming, along with many new features across all technologies, which can be accessed by applications using the DirectX APIs.