iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2016-08-25T16:53:07Z. The update package is 189.24 MB. This is a delta (partial) update that requires 9.2 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: d827ce0acdf1f4fceace1d1a7e42a0864e2ee417.zip.