Apple has released iTunes 12.6 and it comes with a new ‘Rent once, watch anywhere’ feature for iTunes movie rentals.
Previously if you rented a movie on iTunes it was only available on a single device at a time , this has now changed with iTunes 12.6.
You can now watch iTunes movie rentals across multiple devices and this works with devices that are running iOS 10.3 and above or tvOS 10.2.
This suggests that we would be getting the iOS 10.3 software update and also the tvOS 10.2 software update some time soon.
Source MacRumors