The following will be effective 2 May 2017 12:00 UTC:
The .GNOXBT Index will use the most liquid GNO/XBT spot exchange's price. At this moment, it appears that the most liquid exchange will be Poloniex.
GNOM17 will switch from Last Price to Fair Price Marking. Please read Fair Price Marking for more details on how this will affect trading.
The Limit Up / Down restrictions will be removed.