DirectX 9.0c has been released although currently there are no games that take advantage of it. FarCry with the v1.2 patch applied along with Nvidia 6800 or ATI X#00 hardware will do so via the shader model 3.0 and 2.0b respectivley however.
This file (35mb) is the redistributable version that works on Windows 98SE, ME, 2000, XP and Server 2003.