The firmware version c6 is the most stable as c7 may contain some bugs so we recommend using c6. That being said I assume if you replied to this posting you are willing to test this new update so I will update devices that I see online. If your device does not update in a few hours from the date of this post then the device did not show as online in our system. If you are sure you had the device connected and you have been waiting for awhile for an update then contact support at tech.support@deeper.network as your device may have an issue and is not reporting itself as online. Otherwise, I will periodically check this post and those who wish to test the update will get that pushed and anyone that wants to return to c6 can post for that here too.