iOS 11.0.1 (build 15A402) is an official Apple over-the-air update for the iPhone 6s, released on 2017-09-26T17:08:34Z. The update package is 1.05 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b5c32977d6c36c2bc97376b3fe34be2d1d84c521.zip.