iPadOS 12.1.3 (build 16D5032a) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-12-19T18:06:39Z. The update package is 219.17 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: 675e933250ad0e7e8e155cb18676ba67afb4ec3a.zip.