iOS 9.9.17.6.1 (build 21G101) is an official Apple over-the-air update for the iPhone XS, released on 2024-08-19T17:15:49Z. The update package is 5.67 GB. This is a delta (partial) update that requires 12.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 19cd82d9e3473fb8f4d338ad01a09fc46c879850.zip.