Microsoft's next big update for its mobile operating system has finally started rolling out. The Lumia Denim update is now available for Lumia 520, Lumia 525, Lumia 526, Lumia 625, Lumia 720, Lumia 720T and Lumia 1320, but it is only in China at the moment.

There are no details when the update will be rolled out to other parts of the world. The update comes with upgraded Lumia Camera app, faster photo snapping, a Moment Capture feature shooting video in 4K@24fps, Rich Capture (Auto HDR and Dynamic Flash), improved image processing, better Glance Screen with weather, health, and fitness info, and "Hey Cortana!" voice activation.