Bill Hollings has announced the release of MoltenVK Vulkan SDK 1.2.182.

MoltenVK is a driver-level implementation of the Vulkan 1.0 graphics and compute API, that runs on Apple's Metal graphics and compute framework on both iOS and macOS.

MoltenVK allows you to use the Vulkan graphics and compute API to develop modern, cross-platform, high-performance graphical games and applications, and to run them across many platforms, including both iOS and macOS.

• Add support for extensions:
  • VK_KHR_imageless_framebuffer
• Advertise Vulkan extension functions only from enabled extensions.
• Make vkGetPastPresentationTimingGOOGLE() queuing behavior compliant with Vulkan spec.
• Expose vkGetIOSurfaceMVK() and vkUseIOSurfaceMVK() without requiring Objective-C.
• Default MoltenVK build using C++17 and compiler optimization setting -O2.
• API fix to remove #include "SPIRVReflection.h" from SPIRVToMSLConverter.h header.
• Support Xcode 12.5 build settings, build warnings, and SDK change to availability of
  [MTLDevice supportsBCTextureCompression] on Mac Catalyst.
• Add support for new AMD devices supporting 32 lanes.
• Improve handling of sampler border color and mirror edge clamp.
• Improve cache hits when matching SPIRVToMSLConversionConfiguration structs to each other
  to find a cached shader, by only considering resources from the current shader stage.
• Rename kMVKShaderStageMax to kMVKShaderStageCount.
• Fix crash when requesting MTLCommandBuffer logs in runtime debug mode on older OS versions.
• Fix synchronization issue with locking MTLArgumentEncoder for Metal Argument Buffers.
• Fix race condition on submission fence during device loss.
• Fix crash due to incorrect number of attachments when clearing.
• Fix crash using memoryless storage for input attachments on Apple Silicon.
• Fix issue where M1 GPU does not support reusing Metal visibility buffer offsets
  across separate render encoders within a single Metal command buffer (Vulkan submit).
• On command buffer submission failure, if MVKConfiguration::resumeLostDevice enabled, do not release
  waits on VkDevice, and do not return VK_ERROR_DEVICE_LOST, unless VkPhysicalDevice is also lost.
• Fix inconsistent handling of linear attachment decisions on Apple Silicon.
• Fix small memory leak during swapchain creation.
• Fix stencil clear incorrectly using using the depth loadOp, when stencil is smaller than render area.
• Reorganize coherent texture flushing on memory map and unmap`.
• Fix issues where data in temporary internal buffers are discarded while in use.
• Protect against crash when retrieving MTLTexture when VkImage has no VkDeviceMemory bound.
• Adjust some VkPhysicalDeviceLimits values for Vulkan and Metal compliance.
• Fix internal reference from SPIRV_CROSS_NAMESPACE_OVERRIDE to SPIRV_CROSS_NAMESPACE.
• Add label strings to MTLCommandBuffers, based on use type, for GPU Capture debugging.
• Add Scripts/runcts script as a convenience for running Vulkan CTS tests.
• Support Xcode 13 SDK APIs and build settings.
• Update dependency libraries to match Vulkan SDK 1.2.182.
• Update to latest SPIRV-Cross version:
  • MSL: Handle array of IO variable with Component decoration.
  • MSL: Handle array with component when we cannot rely on user() attrib.
  • MSL: Improve handling of split tessellation access chains.
  • MSL: Always enable support for base vertex/index on iOS.

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