iPhone 8 Firmware: iOS 16 Was the Last — Final Builds, IPSW Downloads & How It Compares to iPhone 7

The iPhone 8 and iPhone 8 Plus reached end-of-life at iOS 16 — one full major iOS version beyond where the iPhone 7 stopped. That single generation difference is the operative fact for anyone deciding whether to restore an iPhone 8, buy one second-hand, or compare it against the iPhone 7 for practical longevity. This guide covers the final iOS version, which IPSW builds are signed, all model identifiers, and the restore process.

For background on IPSW files and Apple's signing window, see What Is a Signed IPSW?

Direct Answer: The last iOS version for iPhone 8 and iPhone 8 Plus is iOS 16.7.16 (build 20H392), signed as of July 2026. Download from IPSW.io (iPhone 8, Global) or the identifier matching your model. No version of iOS 17, 18, 26, or later is available for these devices.

iPhone 8 EOL — The One-Version Gap Over iPhone 7

The iPhone 7 uses an A10 Fusion chip and topped out at iOS 15. The iPhone 8 uses an A11 Bionic — the same chip as the iPhone X — and reached iOS 16. That chip upgrade bought one additional major iOS release cycle, which translated to:

• Approximately 1–2 more years of app compatibility before minimum iOS requirements began excluding the device
• Access to iOS 16 features: Lock Screen customization, Live Activities, iCloud Shared Photo Library, and improved Siri
• An additional round of security patches under the iOS 16.7.x branch

The iPhone 8 and iPhone X share the same chip and the same final iOS version. For context on the X family and why the XR and XS went further, see iPhone X, XR & XS Firmware: Final iOS Versions & IPSW Downloads.

iPhone 8 Model Identifiers

The iPhone 8 and 8 Plus each ship in two hardware variants based on radio configuration. Both variants within each model run identical iOS versions, but the IPSW file differs. Confirm your identifier at Settings → General → About → Model Number (tap to toggle).

• All iPhone 8 (iPhone10,1) IPSW versions
• All iPhone 8 (iPhone10,4) IPSW versions
• All iPhone 8 Plus (iPhone10,2) IPSW versions
• All iPhone 8 Plus (iPhone10,5) IPSW versions
• All iPhone firmware downloads

Currently Signed iOS 16 Builds for iPhone 8 (July 2026)

Like the iPhone 7, Apple continues to sign the latest iOS 16 security patch for the iPhone 8 — the 16.7.x branch is security-only updates delivered to the device after iOS 17 shipped. Older 16.7.x builds have had their signing windows closed.

Always verify live signing status at IPSW.io before downloading — Apple closes windows without notice. For a broader explanation of signing mechanics, see iOS IPSW Signing Status.

What EOL Means in Practice for iPhone 8 Users

• No iOS 17 or later: The iPhone 8 will never run iOS 17, 18, 26, or any later version. Apps requiring iOS 17+ will not install or update.
• Security patches continue within iOS 16: Apple's 16.7.x releases are security patches only. The iPhone 8 receives these despite being off the main update track.
• App compatibility narrows: As developers raise minimum iOS requirements past iOS 16, more apps will stop functioning. The timeline depends on individual developers.
• Practical lifespan: An iPhone 8 running iOS 16.7.16 in mid-2026 is 2–3 years behind the current iOS generation. Core apps (Safari, Messages, Phone, Mail) continue to function. App Store availability for newer apps is increasingly limited.

Restoring iPhone 8 Using an IPSW File

1. Back up to iCloud or Mac/PC — restore erases the device.
2. Download the correct IPSW for your model (iPhone10,1/4 or iPhone10,2/5). Confirm it is signed.
3. Disable Find My iPhone: Settings → [Your Name] → Find My → Find My iPhone → Off.
4. Connect via Lightning cable to Mac or PC.
5. Open Finder (Mac) or Apple Devices / iTunes (Windows). Select your iPhone.
6. Hold Option (Mac) or Shift (Windows) → click Restore iPhone → select the IPSW file.

If the restore fails or the device is stuck, see iPhone Boot Loop Fix: Recover Without Losing Data.

iPhone 7 vs. iPhone 8 — Which EOL Device Has More Runway?

If you are choosing between an iPhone 7 (iOS 15 final) and iPhone 8 (iOS 16 final) for a secondary device, the iPhone 8 has a meaningful advantage: one more major iOS version means a longer tail of app support and more recent security patches. That said, both devices are behind the iOS compatibility curve for new apps as of 2026. See iPhone 7 Firmware: Final iOS Version, IPSW Downloads & EOL Guide for the iPhone 7 side of this comparison.

FAQ

What is the last iOS version for iPhone 8?

iOS 16.7.16 (build 20H392). The iPhone 8 does not support iOS 17 or any later version. iOS 16.7.16 is the final and currently signed build as of July 2026.

Is iOS 16.7.16 still signed for iPhone 8?

Yes, as of July 2026. Verify current status at IPSW.io before downloading — signing windows can change without notice.

What is the iPhone 8 model identifier?

iPhone 8 = iPhone10,1 (Global/CDMA) or iPhone10,4 (GSM) · iPhone 8 Plus = iPhone10,2 (Global/CDMA) or iPhone10,5 (GSM). Check Settings → General → About → Model Number.

Can I install iOS 17 on an iPhone 8?

No. The iPhone 8 is not supported by iOS 17 or any later version. This is a permanent hardware limitation — no software modification changes it.

Why did the iPhone 8 get iOS 16 but not iOS 17?

Apple's iOS support lifecycle is tied to chip architecture. The A11 Bionic in the iPhone 8 was sufficient for iOS 16 but did not meet the requirements Apple set for iOS 17 (which required A12 or newer on iPhones). The iPhone XR and XS, also A12 devices, reached iOS 18 for the same reason.

What is the difference between iPhone10,1 and iPhone10,4?

Both are iPhone 8 models. iPhone10,1 is the Global/CDMA variant; iPhone10,4 is GSM-only. They run identical iOS versions but require different IPSW files.

Does iPhone 8 still get security updates?

Yes, within iOS 16. Apple issues security patches as iOS 16.7.x point releases for the iPhone 8. These are security-only updates — no new features are added.

Is the iPhone 8 worth buying in 2026?

For basic use (calls, messages, older apps), an iPhone 8 running iOS 16.7.16 still functions. The practical constraint is app compatibility — apps with iOS 17+ minimum requirements will not install or update. As a primary smartphone in 2026, it is behind the current app ecosystem by a wide margin.