I think a lot of people here are missing an important point here that Apple has always been fairly ambiguous about what their level of support is for older devi

I think a lot of people here are missing an important point here that Apple has always been fairly ambiguous about what their level of support is for older devices beyond major feature updates. If it weren't for a friend giving me his old iPhone XS as thanks for a favor, I'd probably still be using my old iPhone 6s--and I would not have worried about it from a security perspective purely because (as the article notes) Apple is still releasing security fixes for iOS 15. I'd feel differently if Apple had publicly stated that all iOS 15 security fixes from now on will be on a minimum effort basis only.