The Deltarune: Lightners Live Plus 1.6 Update (Ch4 maps, animations and scoring overhaul) will release TOMORROW!
...I'm pretty sure anyway, assuming there's no unexpected last minute bugs/other problems
Right now I'm just doing some finishing touches to the custom map guide doc, as well as some final bug testing. I'm pretty confident in a Saturday release, but a small delay of a day or two could happen if I find a game-breaking bug that takes a while to fix