iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad mini 3 (Cellular), released on 2018-10-30T17:05:19Z. The update package is 335.73 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 48202fe76cc4f8538583ff1b715e286d06acad1e.zip.