iOS 15.7.5 (build 19H332) is an official Apple over-the-air update for the iPhone 6s, released on 2023-04-10T17:11:57Z. The update package is 3.05 GB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 11ec3c1531b6aa839c8ae3e8c0805aa2215e5b20.zip.