iOS 9.9.16.4.1 (build 20E252) is an official Apple over-the-air update for the iPhone XS, released on 2023-04-07T17:13:42Z. The update package is 4.85 GB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: dc44601f7e501b76d7c8784b68e7d63434b1441b.zip.