Apple announced iOS 17 at WWDC 2023. Minimum iPhone it appears is iPhone SE2 (2020). I did have my iPhone SE1 (2016) up iOS 15.7.6 - 6 years. Apple started the Dual OS Update from iOS 14/15, iOS 15/16 and iPadOS 14/15, iPadOS 15/16.
Apple decided not to further update iOS/iPadOS 14 (went up to 14.8) but did continue with iOS/iPadOS 15 on supported Devices. I'm all up to date on all of my devices now.
www.macworld.com
Apple decided not to further update iOS/iPadOS 14 (went up to 14.8) but did continue with iOS/iPadOS 15 on supported Devices. I'm all up to date on all of my devices now.

iOS 17: Everything you need to know about Apple's next iPhone update
Here's everything you need to known about the new features coming in iOS 17 this fall.
