iPadOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2019-05-07T17:03:49Z. The update package is 383.3 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: de2df2519b7fa9b33833a580516a6e0fab3db484.zip.