Samsung in their latest post said that they are working on the latest Android 5.1 lolipop Version of the OS and soon it will roll out to Samsung S6 and S6 Edge, the two new phones from the company.
Whatsapp's recently introduced voice calling feature starts to roll out for IOS users too. The feature was already available for the Android users for the last one month. Now this feature is going to available for the IOS users too in the coming week. Whatspp updated its application with the new feature in the App Store recently, however if you downloaded the new version, you have to wait for few more days to get the feature active on your phone.