7970 wddm 2.2

Hi,

 

I've just installed Windows Fall Creator Update (via insider programme).  I have an AMD HD7970 Card with the latest drivers installed.  However WDDM still shows as 2.1 under dxdiag.

 

Is there a particular driver i need to install to get WDDM 2.2 support as i believe this card should support this standard.

 

Many thanks