Redeem start.If you use NRS client,just send back your IOTACOIN asset to NXT-7WS4-K456-3LF4-FYDFP and attach a message with your IOTA address at the same time.
If you use
mynxt.info online wallet:
1.Send back your IOTACOIN asset to NXT-7WS4-K456-3LF4-FYDFP
2.Send 1 NXT to NXT-7WS4-K456-3LF4-FYDFP and attach a message with your IOTA address at the same time.

1 IOTACOIN asset=2279530 IOTA
Note:Rollback are still possible with this version. So you can choose to redeem with stable version release latter.