iPadOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2019-05-10T17:08:43Z. The update package is 365.96 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: b782b2f7ef6f6e56285dbf0699e1d795859fbe16.zip.