I still don't get this. Apple is a trillion dollar company. How much does it cost to pay a couple of engineers to maintain an up to date version on top of Metal? Their current implementation is 4.1, it wouldn't cost them much to provide one for 4.6. Even Microsoft collaborated with Mesa to build a translation on top of dx12, Apple could do the same.
I still don't get this. Apple is a trillion dollar company. How much does it cost to pay a couple of engineers to maintain an up to date version on top of Metal? Their current implementation is 4.1, it wouldn't cost them much to provide one for 4.6. Even Microsoft collaborated with Mesa to build a translation on top of dx12, Apple could do the same.