iOS 9.9.15.2 (build 19C6056) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2021-12-13T18:27:10Z. The update package is 4.22 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: 48a2a8eb8a4339355cf8e2ff0606f1c0efb42da7.zip.