iPadOS 12.1.3 (build 16D5032a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2018-12-19T18:06:41Z. The update package is 220.48 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: 7f5e525e52b6588346cbfcd4a27c292a278f6b7f.zip.