iPadOS 12.1.2 (build 16D5024a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi, 1TB Model), released on 2018-12-10T18:09:02Z. The update package is 309.13 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: bb7340772980c616a47cc6705fea9f8a5a13fb8c.zip.