iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 6s, released on 2017-10-11T17:07:48Z. The update package is 1.1 GB. This is a delta (partial) update that requires 10.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 264b92d33e655b92d2119d886eaf3aeeeef7b49b.zip.