iPadOS 13.1 (build 17A5844a) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2019-09-18T17:06:29Z. The update package is 173.1 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: fa24bf759e2ef2fd02806317a6806be0b0b645fc.zip.