An update to the DirectX SDK is now available.  Here is a brief list of changes:

        Tool Updates
                PIX             - Call capture and playback, Asynchronous events, Triggers and Actions
                Maya Exporter   - Maya 6 Support, Procedural texture support, Updated installer

        New Samples
                C++             - AntiAliasing, Instancing, ConfigSystem
                Managed         - PrtPerVertex, FragmentLinker , SimpleAnimation

        Bug fixes
                D3DX            - Debug Output Muting, PRT Blocker meshes no longer have a 65,535 vertex limit, texture UV coordinate transformation)
                DirectX for Managed Code        - memory leak in TextureLoader.FromFile, unhandled exception errors)

I am especially excited about the Maya 6 exporter.  The last SDK only included support for Maya 5 and it didn't work with the new version.

Here are the links to the downloads.  This is "breaking" news, so the main portal page, http://msdn.microsoft.com/directx, hasn't been updated yet.

Release Notes
http://www.microsoft.com/downloads/details.aspx?FamilyId=97CDCC31-7D0C-4F4F-81B1-16A0A7C29FB9&displaylang=en

Software Developer Kit
http://www.microsoft.com/downloads/details.aspx?FamilyId=B7BC31FA-2DF1-44FD-95A4-C2555446AED4&displaylang=en

Extras
http://www.microsoft.com/downloads/details.aspx?FamilyId=D6F237DE-A6EE-4DED-8BB6-139536162EB8&displaylang=en

Symbols
http://www.microsoft.com/downloads/details.aspx?FamilyId=87336CEE-864D-440E-840F-25C53D5DEEE4&displaylang=en