iOS 13.5 (build 17F5065a) is an official Apple over-the-air update for the iPhone 6s, released on 2020-05-06T17:09:07Z. The update package is 140.07 MB. This is a delta (partial) update that requires 13.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cdb7a4106a6dcdecd8ba98ee77d050fd97abe67c.zip.