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 264.7 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 18be72b3298f882fcdd34de3b643c18f315a1152.zip.