IOS 15

iOS 15 is the fifteenth major release of iOS that is reportedly in development to succeed iOS 14. It is expected to be announced at the 2021 Worldwide Developers Conference in June and released sometime later in 2021.

Supported devices
Apple is reported to be limiting compatibility to devices using the Apple A10 "Fusion" processor or later, eliminating support for the following models:
 * iPhone 6 S / 6 S Plus
 * iPhone SE (1st generation)