If you didn't read it from yesterday yet, check out Vulkan 1.0.39 and its number of new features/extensions. In the case of the new NVIDIA Vulkan driver beta, which is different from their other Vulkan beta driver earlier this month, meant adding support for the VK_KHR_get_physical_device_properties2, VK_KHR_maintenance1, VK_KHR_shader_draw_parameters, VK_EXT_shader_ballot, and VK_EXT_shader_group_vote extensions.
These 1.0.39 extensions are now implemented in the new betas for Windows/Linux. The updated Linux driver is marked as 375.27.07, which has the latest Vulkan goodies, but hasn't yet been ported over to the 378 driver series.
Great to see NVIDIA continue to issue updated Vulkan (and in the past, OpenGL) drivers so timely for all platforms. The new driver can be downloaded here.
When it comes to the open-source Mesa Vulkan drivers, there have been some of the patches already floating on Mesa-dev for the needed changes. When it comes to AMDGPU-PRO and AMD's official Vulkan driver, we don't yet have any information on when they might issue an updated driver. Bridgman recently commented in the forums on an unrelated thread about a new AMDGPU-PRO driver possibly coming in "weeks", but no word if that will have the 1.0.39 extensions.