iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2019-04-22T17:07:59Z. The update package is 347.38 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: e1fafae67f3891f3c9aa38c51bd9f8ef6a25559f.zip.