iOS 9.9.13.2 (build 17B5084a) is an official Apple over-the-air update for the iPhone XS Max, released on 2019-10-23T17:09:31Z. The update package is 3.23 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: 199971c0f58704bb047ab0e675135d8950508503.zip.