This list offers the five most important things you need to know before you install the iPhone 4s iOS 8.2 update on the aging iPhone, that sometimes doesn’t offer much storage for users. Before ...

The steps you need to take to update iOS on iPhone and what to do if you encounter problems updating or installing iOS 18 on your iPhone.

That means if you have an iPhone 4S or later, an iPad 2 or later, or a fifth- or sixth-generation iPod Touch, you are good to go. It's here.