iOS 13.3 (build 17C5038a) is an official Apple over-the-air update for the iPhone XS Max, released on 2019-11-12T18:13:00Z. The update package is 280.2 MB. This is a delta (partial) update that requires 13.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f5eafa8779b61fb675894e6df7dc8c9d1a692c4c.zip.