# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2017-11-17 13:56:53 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/931521525588680704) In reply to: [@nicklockwood](http://twitter.com/nicklockwood/status/931484187080777728) @nicklockwood Less capable?!? iOS 11 SDK is less capable than iOS 4?!?