iPadOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-09-04T17:05:36Z. The update package is 294.72 MB. This is a delta (partial) update that requires 13.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 39f393ce134e25cdb5d9546f3817ec189a0db5dc.zip.