iOS 4 has been lovingly recreated as an iPhone app - The Verge
Goodbye, A5: iOS 10 ends support for iPhone 4S, iPad 2, and more [Updated] | Ars Technica
Download iOS 10.3.4 on iPhone 5 Right Now or Lose App Store, iCloud
Apple's iOS 10 is here – should you update now or wait? - CBS News
iOS 10 review: the coming of age of apps | TechCrunch
What iOS can iPhone 4 go up to?
iOS 10: Available Now
Apple iPhone 4 - 32GB - Black (AT&T) for sale online | eBay
Evolution from iPhone OS 1 to iOS 10 - Journey of iOS - Mobiloitte Blog
fluff] iPhone 4 with iOS 14 mod : r/LegacyJailbreak
Apple's New iOS 10 Marks the End of the Super Popular iPhone 4
iOS 10 means it's time for iPhone 4S owners to move on - CNET
question] Recently got my hands on an iPhone 4 running iOS 7.1.2. Should I jailbreak it? Btw it's a 32gb white, I also need to replace the battery. : r/LegacyJailbreak