iOS 9.9.15.7.8 (build 19H6364) is an official Apple over-the-air update for the iPhone 6s, released on 2023-07-24T17:28:44Z. The update package is 3.81 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ea4a419bbe929f905c81f8c892d65d8d690d4240.zip.