CMC version 2.0 is in beta test now.

Version 2.0 include the following features:
1. modify current user interface of CosmosCoin, make it more beautiful and user friendly;
2. try our best to add p2p chat support like bitmessager, we will make it;
3. move the default block data dir to current directory of the qt exe file
4. make new logo for CMC.