NVIDIA has just released its new GeForce Game Ready 451.48 WHQL drivers, with support for the new DirectX 12 Ultimate API that includes DirectX Raytracing (DXR) version 1.1.

Microsoft has announced DirectX 12 Ultimate, the next version of DX12 and the first time a release has been timed against Microsoft's next-generation console schedule.

These include a big update to the DirectX Raytracing SDK, bringing that up to version 101. DirectX Mesh Shaders, texture streaming, and more are being overhauled.