iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2019-01-22T18:05:29Z. The update package is 1.19 GB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 69e498141742c70af440b7f00dfd743fc9cd119d.zip.