I am done with 1.8.9, atm in the testing phase. It contains tweak profiles that can be used on rx 450/460/550/560 rx 470/480/570/580/580/590.
It is intended for already modified cards - to get out a little bit more juice, but of course it will work on stock bios too, but the performance is far from a modded vbios.
This will be a great update. Recently I use only SRBminer. And with such new settings it will be even better. Approximately when can we expect the next version?
I am testing it already on a few rigs, so if everything goes OK, i will release it tomorrow.