iOS 12.2 (build 16E5191d) is an official Apple over-the-air update for the iPhone 6s, released on 2019-02-04T18:06:18Z. The update package is 280.14 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 388f889dcffa05251ae9d03e33b06f4bfa8ac4a5.zip.