iOS 15 will run on the iPhone 7, iPhone 7 Plus, and all newer iPhones that have been released, making it compatible with devices that have an A10 chip or newer.

The latest iPhone release is important and includes features and bug fixes—and an important change to Apple Intelligence ...

According to WABetaInfo, WhatsApp will drop support for the iPhone 5s, iPhone 6, and iPhone 6 Plus ... jump to iOS 15.1, it only affects those three phone models since iOS 13, 14, and 15 supported ...