iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad 3 (WiFi), released on 2016-08-25T16:53:12Z. The update package is 51.8 MB. This is a delta (partial) update that requires 9.3 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 1e6ceba2fae1f0dd3b9c761a67efbf2579eec184.zip.