iPadOS 10.3.3 (build 14G60) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2017-07-19T16:59:08Z. The update package is 625.56 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 0f3bdc8169072fa023de59876a69ade79cb60d57.zip.