The all-new iOS 16 drops on September 12. You can update your iPhone manually or automatically from the Software Update section of the Settings app.

How to Update an Apple iPhone From a Computer. Apple uses software updates to roll out new features, bug fixes and software improvements for the iPhone, improving both functions and security.

If you haven't updated your iPhone to iOS 7.1.2 yet because you're nervous you'll come across problems, here's a way that will minimize any possible damage.