iPadOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2019-09-10T20:15:47Z. The update package is 389 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: 2493ab998923c6f64d6b3418761c3e901158265a.zip.