audioOS 9.9.16.3.2 (build 20K672) is an official Apple over-the-air update for the HomePod mini, released on 2023-02-13T18:18:13Z. The update package is 1.13 GB. This is a delta (partial) update that requires 15.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e236139baa440c4018a3c17fb5b2424a70dd496d.zip.