We all already know that Microsoft will start the roll-out of Lumia Cyan and Windows Phone 8.1 software updates to Nokia devices in June. Today, @evleaks posted an internal document which reveals the schedule of the roll-out. As you can see in the image above, current Windows Phone 8.1 devices will receive the update first, followed by Nokia Lumia 1520 and others. The roll-out will begin from June 22nd and will continue till August. One can assume that their device will get the update before the end of August for sure. What do you think?