audioOS 9.9.14.5 (build 18L203) is an official Apple over-the-air update for the HomePod mini, released on 2021-04-26T17:18:07Z. The update package is 668.75 MB. This is a delta (partial) update that requires 14.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bf56ab26b53a3bd56ee8fd91fa1cb9d9bd12803d.zip.