There is a big difference is that the other OSes are doing it no matter how many pitchforks come into their way, while with Linux you need to find a security conscious distribution.
Yes we do, as they presented at WWDC, all of them.
They are following a two release steps, in release N, the user space drivers for a specific class get introduced and the respective kernel APIs are automatically deprecated. In release N + 1, those deprecated APIs will be removed.
