Currently, Apple's latest firmware is iOS 10.3.2 and developers have been seeded with iOS 11. If you accidentally update or restore, you'll find yourself on iOS 10.3.2.
While Pangu demonstrated a jailbreak of iOS 10.3.1 that worked on the iPhone 7 it was never released. Just last week a jailbreak of iOS 11 beta was demonstrated by KeenLab; however, it's unclear if the group plans to publicly release the jailbreak or whether it will even work on the final version of iOS 11.
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