The MoltenVK 1.3 release candidate didn't end up needing much baking and overnight the MoltenVK 1.3 stable release was issued for Vulkan 1.3 API support on Apple devices that is built atop Apple's Metal drivers.

MoltenVK 1.3 provides Vulkan 1.3 API support across Apple macOS, iOS, tvOS, and visionOS platforms. MoltenVK continues to serve as a translation layer so that applications/games can use the cross-platform, multi-vendor Vulkan API and in turn translating for execution with Apple's Metal graphics driver stack.

MoltenVK 1.3 is compatible with Vulkan 1.3 while adding support for the VK_KHR_index_type_uint8, VK_KHR_load_store_op_none, VK_KHR_maintenance4, VK_KHR_maintenance6, VK_KHR_maintenance7, VK_KHR_shader_expect_assume, VK_KHR_shader_subgroup_rotate, VK_KHR_shader_terminate_invocation, VK_KHR_vulkan_memory_model, VK_KHR_zero_initialize_workgroup_memory, VK_EXT_depth_clip_control, VK_EXT_external_memory_metal, VK_EXT_image_2d_view_of_3d, VK_EXT_index_type_uint8, VK_EXT_load_store_op_none, VK_EXT_pipeline_robustness, and VK_EXT_tooling_info extensions.

MoltenVK 1.2 also adds support for more formats and fixes dozens of bugs.

Downloads and more details on MoltenVK 1.3 via GitHub .