alt Hacker NewsThis is false. In fact, iOS 26 got an update just yesterday.
https://en.wikipedia.org/wiki/IOS_26
When iOS 27 became available, people were given a choice to upgrade to 27, or to 26.7. I know this because I upgraded my personal phone to 27, and my work phone to 26.7.
You may have missed the button, but it was there.
You originally said iOS 16. The recent iOS 16 update was only for older devices.
Apple typically continues releasing updates for n-1 iOS for a few months. After that limited window, updates are only released for the latest iOS, except for devices which are too old to run the latest iOS, which continue receiving updates on the last-compatible iOS for a couple of years.