DirextX 12 - no stream, updates

[fatslob-:O]

VitroBahllee said:

DX11.2 was released a month before the Xbox One shipped so the games that came out on it that had been in development for two years probably used it? October is like five months ago. All I'm saying is that the tiled memory resource thing they are talking about implementing in the new X1 SDK is supposedly a part of DX11.2, so it can't have been too implemented in the current games or they wouldn't need a new SDK for it. DX12 is certainly not already in effect on the released games on this system. 

Why wouldn't the X1 have supported it ? After all it is MICROSOFT that CONTROLS the specifications of Directx.