GL_ARB_gl_spirv on i965, iris.
GL_ARB_spirv_extensions on i965, iris.
GL_EXT_demote_to_helper_invocation on iris, i965.
OpenGL 4.6 on i965, iris.
EGL_EXT_image_flush_external
VK_ANDROID_external_memory_android_hardware_buffer on RADV.
VK_KHR_shader_clock on Intel, RADV.
VK_KHR_shader_float_controls on Intel, RADV.
VK_KHR_spirv_1_4 on Intel, RADV.
VK_KHR_timeline_semaphore on RADV.
VK_KHR_vulkan_memory_model on Intel.
VK_EXT_shader_subgroup_ballot on Intel.
VK_EXT_shader_subgroup_vote on Intel.
VK_EXT_texel_buffer_alignment on RADV.
VK_INTEL_performance_query on Intel.
Meson support for windows using MSVC and MinGW
scons has been deprecated for non windows
Initial Intel gen12 (Tigerlake) support on anvil and iris
New compiler backend "ACO" for RADV (RADV_PERFTEST=aco)
VK_EXT_shader_demote_to_helper_invocation on RADV/ACO.
