mechanism to enable allocation of rendering performance/power at varying rates across rendered images. It comes with two tiers (tier 1 and tier 2). Collect Diagnostic Info, allowing the operating system to collect a private data from drivers for both rendering and display functions. This new feature is a requirement in WDDM 2.6. Background Processing, allowing user mode drivers to express desired threading behavior, and the runtime to control/monitor it. APIs allow apps to adjust what amount of background processing is appropriate for their workloads and when to perform that work. Driver Hot Update, reducing server downtime and allowing driver security hot patch to the kernel mode driver. WDDM 2.7 Windows 10 May 2020 Update (Version 2004) includes WDDM 2.7. Updates to display driver development in Windows 10 version 2004 include the following features: Shader Model 6.5, adding support to the new pipeline capabilities as well additional Wave intrinsics. Hardware-accelerated GPU scheduling: masked as an additional option in the system settings, when enabled offloads high-frequency tasks to a dedicated GPU-based scheduling processor, reducing CPU scheduling overhead. Requires ad-hoc hardware and driver support. Sampler Feedback, allowing a finer tune of the resources usage in a scene. It comes with two tiers (tier 0.9 and tier 1.0). DirectX Raytracing (DXR) Tier 1.1, introducing inline ray-tracing, indirect rays dispatching, increasing the state object without the need to create a new one, and additional vertex formats for acceleration structures. Mesh and Amplification Shaders Stages, a new optional geometry pipeline replacing the traditional pipeline (Input Assembler-Vertex-Hull-Tesselator-Domain-Geometry and Stream Output stages). Improved memory allocation control, with better residency control and the possibility to not explicitly zeroing newly created heaps. Direct3D 9 resource interop, allowing projecting a Direct3D 9 resource on a Direct3D 12 application. Direct3D 12 Video Protected Resource support, allowing play protected content in a Direct3D 12 application. WDDM 2.8 Windows 10 Insider Preview Manganese included WDDM 2.8, but no driver was ever publicly demonstrated to support it and it has been skipped for "Iron" and "Cobalt" development releases. WDDM 2.9 WDDM 2.9 in Windows 10 Insider Preview "Iron" will bring support for GPU hardware acceleration to the Windows Subsystem for Linux 2 (WSL 2) and support for feature level 12_2 and HLSL Shader Model 6.6. WDDM 3.0 Windows 11 RTM Final Retail release (version 21H2) includes WDDM 3.0, which improves graphics architecture in Windows Subsystem for Linux adding: User mode driver compiled for Linux in