Well known iOS hacker iH8sn0w has demonstrated a working jailbreak for Apple iOS 10, he confirms the iOS version by demoing deletion of iOS stock Mail app and also reboots his device to assure it's an untethered jailbreak.

While no information was shared about this iOS 10 jailbreak, it is worth noting that he is using an Apple iPhone 5 which is a 32-bit device. And this jailbreak could very well be the iBoot exploit the hacker has demonstrated a few years ago which puts shuts down the doors for this being a working jailbreak solution on Apple iOS 10 on newer Apple devices. Do watch the video shared below.