https://wccftech.com/dxr-api-out-windows-10-october-update/

The Windows 10 October update is out now and it also includes the official release of DXR, the new DirectX Raytracing API developed by Microsoft.

According to the Windows company, this is one of the fastest adopted features they’ve released in recent years. They also expect raytracing to help games fully cross the ‘uncanny valley’ phenomenon thanks to the much more realistic lighting.