From what I have found both Windows 10 Intel and Nvidia Drivers support that Vulcan new extention.
Intel: Intel Rolls Out HD Graphics Driver 26.20.100.7323 for Windows 10 DCH 64-bit
Intel has made available a new version of its HD Graphics driver, namely the 26.20.100.7323 update, which improves adds support for Microsoft’s Windows 10 November 2019 Update (Version 1909) RTM.
In addition to that, the 7323 build also adds Direct ML metacommands support (for transposed GEMV in FP32), and allows using VK_EXT_shader_demote_to_helper_invocation and VK_KHR_buffer_device_address Vulkan Extensions
Nvidia: Vulkan Driver Support | NVIDIA Developer
November 25th, 2019 - Windows 436.65, Linux 435.27.08
Khonos: Vulkan® 1.1.134 - A Specification (with all registered Vulkan extensions) . The extension is included in Vulkan version 1.2.
Promotion to Vulkan 1.2
All functionality in this extension is included in core Vulkan 1.2, with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.