Putting iOS 15 beta on the “sacrificial iPhone 6S” : Global Nerdy
Apple Hub on X: "According to iPhoneSoft, iOS 15 will be compatible with all iOS 14 compatible devices except for the iPhone 6s, iPhone 6s Plus and the 1st gen iPhone SE
iOS 15 May Not Be Supported on iPhone 6S, Older iPhone SE When It Launches in
iOS 15 on iPhone 6s | Should you install iOS 15 on iPhone 6s? Missing iOS 15 features - YouTube
Complete List of iOS 15 Compatible iPhones (Confirmed) | Beebom
Rumor Claims iOS 15 to Drop Support for iPhone 6s and Original iPhone SE - MacRumors