Thanx Cepi:

One thing I noticed though, like in my case, there's no notifications sounds when I receive messages, Profile picture don't update too, I think this is caused by the change in folders as recently some said they prefer wazapp folder, some documents etc, now upgrading on top the existing one courses confusin to the app, unless everything is deleted for the phone before new install, I haven't done this myself yet but I think that's the problem.