iPadOS 12.1 (build 16B5068i) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-10-02T17:11:49Z. The update package is 353.77 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 79f602be1b7ae7b97602c6a253e5714c2435755e.zip.