Update for iPhone 5S and 6 were released as late as January 23, 2023 also,
So you may also get updates as and when Apple Inc sees a need for it.
These are the iOS options based on an iPhone Model -->
- iOS 17.1.1 —>
- A16 Bionic (4 nm) - 15 (6GB RAM) / 15 Plus (6GB RAM)
- A17 Pro (3 nm) - 15 Pro (8GB RAM) / 15 Pro Max (8GB RAM)
- Chipset A12 - XR (3GB RAM) / XS (4GB RAM)/ XS Max (4GB RAM)
- Chipset A13 - SE (2020) (3GB RAM) / 11 (4GB RAM)/ 11 Pro (4GB RAM)/11 Pro Max (4GB RAM)
- Chipset A14 - 12 Mini (4GB RAM) / 12 (4GB RAM) / 12 Pro (6GB RAM) / 12 Pro Max (6GB RAM)
- Chipset A15 - SE (2022) (4GB RAM) / 13 Mini (4GB RAM) / 13 (4GB RAM) / 13 Pro (6GB RAM) / 13 Pro Max (6GB RAM)
- Chipset A16 - 14 (6GB RAM)/ 14 Plus (6GB RAM) / 14 Pro (6GB RAM) / 14 Pro Max (6GB RAM)
- iOS 16.7.2 —>
- Chipset A11 - 8 (2GB RAM) / 8 Plus (3GB RAM) / X (3GB RAM)
- iOS 15.8 —>
- Chipset A9 - 6S (2GB RAM) / 6S Plus (2GB RAM) / SE (1st Gen) (2GB RAM)
- Chipset A10 - 7 (2GB RAM) / 7 Plus (3GB RAM)
- iOS 12.5.7 —>
- Chipset A7 - iPhone 5S (1GB RAM)
- Chipset A8 - iPhone 6/6 Plus (1GB RAM)
- iOS 10.3.4 —>
- Chipset A6 - iPhone 5 (1GB RAM)
- iOS 10.3.3 —>
- Chipset A6 - iPhone 5C (1GB RAM)
- iOS 9.3.6 —> iPhone 4S (512MB RAM) - Chipset A5
- iOS 7.1.2 —> iPhone 4 (512MB RAM)- Chipset A4