One of the most popular instant messaging apps is WhatsApp Messenger and it doesn’t need any introduction. WhatsApp was a very simple app but after taking over by Facebook it has got some really good features which make it indomitable. WhatsApp has recently got Video Calling feature too. The app gets updated almost every single day specially the beta version where developers are working to fix bugs and making it more stable. It is always better to have the latest version of any app. Though WhatsApp hasn’t disclosed any changelog but we can assume it must be bugs fixing.