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 65.51 MB. This is a delta (partial) update that requires 16.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 22b427368097576c128d65545315f01feb13174e.zip.