Update your iPhone, and why it matters
Updates fix security problems that criminals try to use. They can also fix bugs and add new features. Your photos, contacts, and settings stay put when you update.
Why it matters
CISA, the U.S. government's cybersecurity agency, says many updates are made to fix security risks, and suggests installing them as soon as you can. Tapping "Remind me later" leaves the door open a little longer.
Before you start
- Connect to Wi-Fi. Updates are big.
- Plug in your charger, or make sure your battery is well charged.
- Apple suggests backing up your iPhone first. If you use iCloud Backup, your iPhone may already do this for you.
- Updating can take a while, and you can't use your iPhone during part of it. Pick a time when you won't need it.
Update now
- Open Settings.
- Tap General, then tap Software Update.
- You'll see which version you have, and whether an update is ready.
- If there's an update, tap Download and Install (it may say Update Now), then follow the steps on the screen. You may need to enter your passcode.
Let your iPhone update itself
- Open Settings, tap General, then tap Software Update.
- Tap Automatic Updates.
- Turn on Automatically Install. Your iPhone will update overnight while it's charging and on Wi-Fi. It lets you know before an update is installed.
Watch for fake "update" messages
Real iPhone updates show up in Settings. A text, email, or pop-up that says "tap here to update your phone" is a scam. Go to Settings instead. See Spot the Scam.
Where these steps come from
Checked in November 2026 against the official pages below, using the newest iPhone software. Your screen may look a little different, especially on an older iPhone. The official page always has the latest steps.