iPadOS 16.6.1 (build 20G81) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular), released on 2023-09-18T17:20:01Z. The update package is 3.47 GB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 14e45fb17bb2cca4a3ac513d88995ca1fd3f39ce.zip.