iPadOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2019-05-10T17:09:14Z. The update package is 400.91 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: 3642a796e10e163312272d7ec32ace5b499192cc.zip.