iOS 9.9.17.0 (build 21A329) is an official Apple over-the-air update for the iPhone 13 Pro Max, released on 2023-09-18T17:34:33Z. The update package is 5.82 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: 548dc0a9c7e80c1c4baf69b0abc2ee0b8b021be4.zip.