Microsoft on Thursday rolled out the DirectX 12 feature-level 12_2 specification. This adds a set of new API-level features to DirectX 12 feature-level 12_1. It's important to understand that 12_2 is not DirectX 12 Ultimate, even though Microsoft explains in its developer blog that the four key features that make up DirectX 12 Ultimate logo requirements were important enough to be bundled into a new feature-level. At the same time, Ultimate isn't feature-level 12_1, either. The DirectX 12 Ultimate logo requirement consists of DirectX Raytracing, Mesh Shaders, Sampler Feedback, and Variable Rate Shading. These four, combined with an assortment of new features make up feature-level 12_2.
Among the updates introduced with feature-level 12_2 are DXR 1.1, Shader Model 6.5, Variable Rate Shading tier-2, Resource Binding tier-3, Tiled Resources tier-3, Conservative Rasterization tier-3, Root Signature tier-1.1, WriteBufferImmediateSupportFlags, GPU Virtual Address Bits resource expansion, among several other Direct3D raster rendering features. Feature-level 12_2 requires a WDDM 2.0 driver, and a compatible GPU. Currently, NVIDIA's "Turing" based GeForce RTX 20-series are the only GPUs capable of feature-level 12_2. Microsoft announced that AMD's upcoming RDNA2 architecture supports 12_2, too. NVIDIA's upcoming "Ampere" (RTX 20-series successors) may support it, too.