This version contains a lot of changes.
It has a new UI (similar to a well-known iOS app) and many new features.
You can now use Drag-And-Drop in the Playlist and the PlayerServerScreen (to sync/move players).
SqueezePlay/Jive menus do work now, i.e. most plugins will probably work.
If you enter an album, you can now select a default “playmode” (play/add/playnext) that will be used if you tap on an item.