iOS 9.9.15.6 (build 19G71) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2022-07-20T17:21:15Z. The update package is 4.27 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: 66c71c57fb1c15c0cf98f511cbba09d4ec6c622a.zip.