RE: SmartCash. # MANDATORY UPDATE of Qt-Wallet client version to 0.3 (0.8.7.9) Pluto + *Release Notes. Daily CoinMarketRecap, Date: Tuesday, September 12, 2017.

[hockleyj]

It was really easy to update on PC, simply downloaded extracted then run, also did a .dat backup beforehand, just to be safe :)