You guys are missing the big picture here, maybe... 4.1 is aimed at supporting Phase Backs...
--tethered support is back in with hot folder access; that's great news for some shooters
--lens cast, fringing and lens calibration stuff is new to version 4, and though I'm not a betting man, I know it works right now with Phase cameras only; good thing Leica works with Phase now, right?

Did you see the "chromatic abberation, purple fringing and lens cast" adjustment on the clipboad?
--better hue adjustments and new UI stuff--it's a lot easier to copy and paste adjustments, which is nice!
--anything that makes it more stable and faster is good.
So this is a "shape of things to come" release, which is a very good step along the way, I think.