https://wccftech.com/vulkan-1-2-spec-released-adds-23-proven-extensions-into-the-core-api/ > The Vulkan 1.2 specification has been released today by the Khronos Group. This release integrates twenty-three proven extensions into the core Vulkan API, mostly developer requested features such as access to new hardware functionality, timeline semaphores for easily managed synchronization; a formal memory model to precisely define the semantics of synchronization and memory operations in different threads; descriptor indexing to enable reuse of descriptor layouts by multiple shaders; deeper support for shaders written in HLSL, and more. > Critically, all graphics cards that already supported previous Vulkan releases are perfectly compatible with Vulkan 1.2. Five GPU vendors have already passed the conformance tests: AMD, ARM, Imagination, Intel, and NVIDIA.