iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad mini 5 (WiFi), released on 2019-04-22T17:07:41Z. The update package is 358.7 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: 70f6cfb03be170547b0bd060be4ed6fba7504d05.zip.