iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2019-04-22T17:08:01Z. The update package is 369.52 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: 280cfa7742d27cdb64a2321da8cefb53e0a89e74.zip.