IIRC, prior to 1.3 there was no “Enhanced” designation or “bullet,” so, for example, if you were not doing anything to affect bitperfectness in Roon, then routing the bitstream to HQP and upsampling/filtering there, your signal path would show as “Lossless.” In 1.3, exactly the same setup shows as “Enhanced” (and this is as it should be, IMO).
Someone please correct me if I’m wrong about the history here.