iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-12-05T18:09:21Z. The update package is 1.34 GB. This is a delta (partial) update that requires 11.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2d44fe05f0b3f42a27424a4ef42c93b705ae96ee.zip.