This update completely renovates the interface, with dark green as its main color. There are a lot of graphical improvements, from the status bar to new colorful animations and profile interface changes. Also Read - WhatsApp reveals what will happen to your account if you don't accept new privacy terms
WhatsApp recently rolled out voice calling to all Android users. It even made the instant messaging possible via a desktop with WhatsApp Web, again an Android only feature. It is not sure when these features are rolling out to iPhone users. WhatsApp recently said that it is working to get voice calling for Windows Phone users as well.
A year after acquisition, Facebook has also begun testing a new feature in its Android app that includes the first major integration of WhatsApp. The social networking site has added a Send button with the familiar WhatsApp icon as a part of the status actions buttons that appear under each status update.