iOS 13.6 (build 17G5059c) is an official Apple over-the-air update for the iPhone 6s, released on 2020-06-30T17:23:07Z. The update package is 232.49 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: 89ae31165ca5755159feaa9c5cdd36543bedf0d9.zip.