iOS 15.7.9 (build 19H365) is an official Apple over-the-air update for the iPhone 6s, released on 2023-09-11T17:13:16Z. The update package is 119.18 MB. This is a delta (partial) update that requires 15.7.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 45c0aa7f3800c584f5a121b5f7a2d1477cf03b1c.zip.