iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2019-04-22T17:08:11Z. The update package is 287.77 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5841e083b1be58c0cd7c165745f6fea67dea9f48.zip.