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 90.74 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: 1737366ad809abe2f861bc5cfeea441cec9fa3d7.zip.