iPadOS 12.1.3 (build 16D5037a) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2019-01-07T18:06:36Z. The update package is 68.15 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a776bf7ef03d6b097ff3b226c107090e136f4e6f.zip.