iOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPhone 8 Plus (Global), released on 2019-04-22T17:08:48Z. The update package is 485.18 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 13c5483f7a14f40edfeaf1b6952e22f155e94e7d.zip.