iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2019-04-22T17:08:05Z. The update package is 272.46 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1ff54911be8cd3f32c454b4cac9ac638328b30be.zip.