For those new to the iPhone, let’s back up and start at the beginning: iOS is Apple’s iPhone software, and the number that follows it represents the software version. Each September, Apple rolls out its large annual updates. For example, Apple released iOS 16 in September 2022, and iOS 17 was officially released in September 2023. While Apple releases more incremental feature updates and bug fixes throughout the year, the September software update tends to have far more redesigned and newly added features. Below, we’ll show you how to use the new iOS 17 features and enhanced capabilities. Updating to iOS 17 Which iPhone Models Can Update to iOS 17? iOS 17 is compatible with the iPhone XS, XR, SE (2nd generation or later), as well as all iPhone 11 and later models. If you’d like to view a complete list of compatible devices, check out our article covering iOS 17 compatibility. Not sure what iPhone model you have? No worries! Check the back of your iPhone, or open the Settings app, tap General, then tap About. You’ll see your iPhone model listed next to Model Name. Pre-Update Checklist To ensure your update runs smoothly, let's go over this important checklist before you update your software: Make sure you have at least 5 GB of free iPhone storage space. Make sure your phone is securely backed up to iCloud or a computer. Plan on not being able to use your iPhone for up to two hours. Plug your phone into a charger. Why? The update will pause if your battery drops to 50 percent or less, so it’s best to keep your phone plugged in throughout this power-intensive process. Make sure you’re connected to a stable and secure Wi-Fi network. That’s it! You’re ready to update your iPhone to iOS 17. How to Update to iOS 17 Once you’ve completed the pre-update checklist above, follow these steps to update your software: Open the Settings app, then scroll down and tap General. Tap Software Update. If your iPhone is not set to update automatically, you should see an available updat