I used the Windows version on the latest PlayRaw. It works very smoothly. Many icons are different (and better) than the old version. For example, the icon for pipette is now a curve with a dot. Much more descriptive. Also there seem to be new (at least for me) Soft Light module in the color tab. The tooltip does not give any information about it. It seem to darken the shadows and lighten the light areas a wee bit. Is it what it is supposed to do? Also, the tooltip flickers (only) for the History entries. They work fine otherwise.
Very happy with this version.