iPadOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2019-01-22T18:06:15Z. The update package is 1.29 GB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7190c317be74b03fcbc137ed560e92d1ccf955a5.zip.