Paulie, you are right. We ask of him to get the app working with Iphone, we did not say to make sure it works with future Iphones, we did not say that in the contract. Usually when I code a website, I do not sign off a website that will work with IE14 (which does not exist yet). BUT I code valid code so that in theory it should work to the best of our abilities.
We began the project about 2 months ago, there is not new Iphone yet, so in theory it should work in every Iphone for today. Right?
The question though, did something change from two months ago to today that requires us to pay him more to roll it out? Or is he BS-ing us?