hey dev team im running version .7 wallet, and just downloaded the client v 2.0.0 and renamed gmc-windows-4.0-amd64.exe to gmc.exe an replaced the old one in my wallet folder.
everything seems to be working and looking good i current have this after checking versions:

Version: 2.0.0-stable-d849d276
Protocol Versions: [63 62]
Network Id: 7945959
Go Version: go1.7.3
OS: windows
GOPATH=
GOROOT=/usr/local/go


again thanks to orchardcoins for helping me out!!!!!


LINKS:
client exe v2.0: https://github.com/Musicoin/go-musicoin/releases
wallet v0.7: https://github.com/Musicoin/desktop/releases