Apple has advised iPhone, Mac and iPad users to get on the latest update because there are a couple of security vulnerabilities that need to be patched.
A newly discovered security exploit is already taking over iPhones, iPads, and other Apple devices in the wild, and Apple people should drop everything and get the latest software update.
The majority of iPhone and macOS updates this year have fixed some pretty big security bugs. The latest updates are no exception, which is why you should install them ASAP.