iOS 11's not-so-ruthless execution: Older iPhones and apps won't work anymore | Mint
PSA: Don't install iOS 11 beta on your main iPhone unless you hate yourself | AppleInsider
Discussion] Successfully downgraded iPhone 6 to iOS 11.4! Big thanks to u/DoggoFox123 aka Mineek (sunst0rm tool). I am open for any questions! : r/jailbreak
11 ways to improve iPhone battery life with iOS 11 - CNET