iPadOS 10.2.1 (build 14D23) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2017-01-09T17:55:46Z. The update package is 55.43 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 441e4b7c1bc8f99b6eebfdcad3ed1967d6cd01cb.zip.