iOS 13.3 (build 17C5046a) is an official Apple over-the-air update for the iPhone 6s, released on 2019-11-20T18:04:26Z. The update package is 123.93 MB. This is a delta (partial) update that requires 13.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0a24347f2ff6156a6fc4b4fefaf8c9fe43da0bd2.zip.