Not a typo, it’s 4.8, but as pointed out it’s pretty buggy so far. I haven’t had any crashes so far, but it’s not ready for release, hence its placement in Promoted/Master branches.
I’ve only tried the one in the Promoted branch so I can’t comment on the Master branch. I have not tried and tested lots of different light types, but as the scenes I currently do only use Directional and Sky Light it’s enough for me at the moment =)