iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2019-01-22T18:05:05Z. The update package is 383.44 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: decb9d21c5a9939a3d592fbeffdba7fbbfeed273.zip.