iPadOS 13.1 (build 17A5844a) is an official Apple over-the-air update for the iPad Air 3 (WiFi), released on 2019-09-18T17:06:22Z. The update package is 212.2 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: 21db861597cf0dc51e6ff8669e16f76a89cf4fe6.zip.