The update is live in the United States right now and is being released over-the-air. There is no word on when it will be available in other regions including India, where Transformer AiO went on sale just days ago.
The official change-log is not available at this moment but the update is expected to include multiple user accounts support, Daydream, actionable notifications, and performance improvements.
The AiO users will get a notification on their tablet as soon as the update is available for their device, they can also go to Settings<<About Tablet<<System Updates, to manually check for the update.
