iPadOS 15.7 (build 19H12) is an official Apple over-the-air update for the iPad Pro 4 (12.9-inch, Cellular), released on 2022-10-24T17:40:06Z. The update package is 2.69 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: f15ab722cea0212aad242558574a748eeabaaa94.zip.