The major new feature of this release is the added support for items other than brewing on the calendar. You can configure what event types are available. You can also subscribe to your Brew Ninja Calendar in Google Calendar, Outlook, iCal, etc.
Merchandise sales have also been made more robust with the introduction of the Direct Sales SKU type. This is perfect for selling T-Shirts, etc. Basically any raw material that you sell directly. This feature is not new but has been renamed and made more robust.