- The hotkey's now working fine. But still "Switch to main player" command shows another one. With a fresh installation, it shows no hotkey for that command even though one is assigned.
the hotkey to restore the main player panel is missing from the list in the hotkey preferences but would have still remained active from a 2.5 upgrade. Thats fixed.
I cant reproduce any issue with the wrong hotkey showning in the caption bar menu though. I suggest you reapply the hotkey setting with the new version when its ready to see if the issue remains for you
- The mini player issue is fixed. But there's another one. "automatically close this window" setting doesn't work.
that should be fixed for the next update
The Artwork (Selected) display does not properly follow the selection once a track has been selected and is in lowlight mode. GIF: http://i.imgur.com/VhiVvOh.gif
that should be fixed for the next update
Why does the speaker icon on sidebar player always show 10, not 100, at full volume even with enough space?
that should be fixed for the next update
Can't intentionally reproduce, but occasionally get this kind of glitch on status bar.

I think it happens when resized window gets maximized, but not 100% sure.
that should be fixed for the next update
Also, now playing right sidebar has the same bug that I reported before:
that should be fixed for the next update
And another small bug:
Now Playing Panel, PLaylist view. Right sidebar showing Bio+Lyrics in a stack:
a) when stack option is set to stack on top of eachother, it works and you can switch between Lyrics & Bio
b) when stacked elements are shown as tabs, the tabs are not working, right sidebar shows only lyrics, clicking on Bio gives no effect
that should be fixed for the next update
With these settings, it is possible to drag the 'stacked' header bar completely down and out of view.

that should be fixed for the next update
Just regarding the Now Playing panel, it was intentional that only playing tracks info is displayed. Not disputing that selected tracks would be useful but i need to see what is involved before i promise