iOS 10.3.3 (build 14G60) is an official Apple over-the-air update for the iPhone 6s, released on 2017-07-19T17:03:46Z. The update package is 679.95 MB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0c0e5ee802f1cfe52fb144b2db08bdae8cf60d7f.zip.