iPadOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2019-09-10T20:12:45Z. The update package is 171.68 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: d49022fd5dd0c4beabb4645e76fca9c9c5b28f7f.zip.