iPadOS 9.9.15.2.1 (build 19C63) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2022-01-12T18:07:44Z. The update package is 4.01 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8c1b4a2c8b903c93695c10448ecd21bf8afc68b2.zip.