iOS 10 will launch in the fall, but you can try it right now. The second public beta for iOS 10 is now out.
It looks very similar to the previous installment, iOS 9, but the are a lot of changes and new features.
In iOS 10 the way you unlock your phone is changed to "Press Home to open", instead of slide. iPhones now can also wake up by themselfs when you pick them up. The device will vibrate when locked when there is a notification.