iPadOS 12.1.3 (build 16D5032a) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-12-19T18:06:37Z. The update package is 219.26 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9484c5744ab1bfbce51dae5c10b75c9b3bc493e0.zip.