You should update your iPhone right now

Earlier today Apple issued an urgent iPhone and iPad software update (iOS 9.3.5) that included a patch for a serious security vulnerability. And while the vast majority of iPhone owners are probably on iOS 9 right now — and should install that version right away — the sudden release left some uncertainty around iOS 10. Are developers and public beta testers running the preview version of Apple's next big software release at risk?
Not at all, according to the company, so lon