What's new for Windows 8 display drivers (WDDM 1.2)

Windows 8 introduced version 1.2 of the Windows Display Driver Model (WDDM). WDDM 1.2 also supports Microsoft Direct3D Version 11.1. See these topics for info on features, guidance to independent hardware vendors (IHVs), and hardware requirements:

WDDM 1.2 and Windows 8
Overview of WDDM 1.2

WDDM 1.2 features
Description of the new features available in WDDM 1.2

Note these requirements that have also been added to the documentation:

Summary of Direct3D support requirements (November 2012)

These topics list the hardware capabilities and formats that user-mode drivers must support for different Direct3D feature levels:

Corrections to XR_BIAS conversions (November 2012)

XR and XR_BIAS format requirements have been corrected in these topics:

XR Layout

XR_BIAS Color Channel Conversion Rules

XR_BIAS to Float Conversion Rules

Float to XR_BIAS Conversion Rules

Conversion from BGR8888 to XR_BIAS