iOS 9.9.15.0 (build 19A6346) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2021-09-20T17:13:05Z. The update package is 4.31 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: 3b4b1c7fce00239be6de7814facc705bdf27a95d.zip.