Microsoft Devices has announced that it's starting the rollout of the Lumia Cyan update to all Nokia Lumia devices running Windows Phone 8 from today



From Techradar:

Included in the upgrade is the Windows Phone 8.1 OS update which launched on the Lumia 630, 635 and 930, bringing with it a raft of new features including a pull-down notification bar with quick settings, word flow keyboard and an optional extra column of live tiles on your homescreen.If you're lucky enough to be in the US you'll also get Microsoft's new personal virtual assistant - Cortana - who will be going head to head with Siri and Google Now. It will be heading to other countries later this year.

  Microsoft pushes Windows Phone 8.1 update to Nokia handsets