iOS 9.9.18.6.1 (build 22G90) is an official Apple over-the-air update for the iPhone XS, released on 2025-08-14T17:49:35Z. The update package is 6.43 GB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 33d569355142c3334d51d3d14021efe866bad69f.zip.