Download
https://www.dropbox.com/s/f9su4uzrqyl9ur2/WBMM_Client.exe?dl=0

You can also run your old client it should show that there is an update available. If it doesn't update download the new version!

Patch Notes
- Fixed issue with losing MMR although you've joined the server
- Fixed lobby screen flickering during lobby queue
- Increased base MMR per win/loss and included round difference ratio to the calculation
- Server freezing issues have also been fixed