Nokia has announced few days back that they are starting the roll out of Nokia Lumia Black update. This update was first announced at the Nokia World in Abu Dhabi and the first device to run this update was Lumia 1520. Lumia Black update brings in quite a lot of new features including App Folders, Nokia Glance 2.0, Nokia Refocus app and more.
Nokia announced that the Black update will be available for all second generation Lumia devices which includes Lumia 1020, 925, 920, 820, 720, 625, 620 and 520. As of now Nokia has started the roll out for Lumia 1020, 925 and 920.
First step is to check for new updates on your device from the settings and then download and install it.
Here is a quick video on how to install the Lumia Black Update on your Windows Phone 8.