iPadOS 9.3.6 (build 13G37) is an official Apple over-the-air update for the iPad 3 (CDMA), released on 2019-07-22T17:06:30Z. The update package is 1007.86 MB. This is a delta (partial) update that requires 8.1.2 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 8898ccb453b9f353ffb65eac6a437c717eb0fc76.zip.