Microsoft DirectX august 2006 redist
Microsoft released a new version of the DirectX redistributable package this month (along, of course, with the DirectX SDK, along with a quick “What’s new” section). This will most probably be the last major redist until DirectX10 comes out with Windows Vista later this year.
A few words about DirectX 10 now, for those of you who are not up to speed with this… First of all, through one bold move, Microsoft has decided that it will not support the already too “old” DirectX 9, not to mention DirectX 8 or any of the previous versions. Also, the new DirectX will not be named Windows Graphic Foundation (WGF) as it was initially planned, and so it will remain at the old name, as in DirectX 10.
The DirectX 10 API will have completely new and faster dynamic link libraries (DLLs) and is supposed to run much faster. The company decided to cut the backward compatibility with DirectX 9, 8, 7 and lower in this API but there will be a way to use games programmed for those APIs. Microsoft will enable support for DX 9 or lower games through a software layer, meaning it might run slower. The company did this to make the next API faster, and at the same time will take some burden of the CPU runtime. At the same time, DirectX 10 will have support for Shaders beyond Shaders, model 4.0.