iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2019-01-22T18:06:24Z. The update package is 1.65 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c1c5130eb03d48914e76d70e7235c1eeb277b8a7.zip.