iOS 13.3 (build 17C5053a) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-12-05T21:11:28Z. The update package is 430.74 MB. This is a delta (partial) update that requires 13.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 82898ff908cd946308f686fff4fe943886bf1723.zip.