iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad 6 (WiFi), released on 2019-04-22T17:08:23Z. The update package is 399.83 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: b8684d35c07048ce52b007a7d56c331706367b00.zip.