Does the iPhone 4s support iOS 10 or later?

No, the iPhone 4s does not support iOS 10 or later. The iPhone 4s can only be upgraded to latest version of iOS 9, which is at currently at version 9.3.2 at the time of this post. Apple introduced iOS 10 on Monday, June 13 during its WWDC keynote at the Bill Graham Civic Auditorium in San Francisco. iOS 10 is only supported on these devices: