The kernel team doesn't use either version, they use release monikers internally (ie. Threshold, RS1-RS5, 19h1-22h2, Sun Valley 1, SV2 etc.)
But also, internal interfaces and external interfaces are rev'd so teams tend to talk about the different interfaces they work with (ie. dxgi 1.2, dx12_3, wddm 3.2, UMDF 2.1) or the different internal versions of apisets.
But also, internal interfaces and external interfaces are rev'd so teams tend to talk about the different interfaces they work with (ie. dxgi 1.2, dx12_3, wddm 3.2, UMDF 2.1) or the different internal versions of apisets.