audioOS 9.9.16.3.2 (build 20K672) is an official Apple over-the-air update for the HomePod mini, released on 2023-02-13T18:18:12Z. The update package is 1.15 GB. This is a delta (partial) update that requires 15.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8e3e9e0839384702fb0ed18c2e46c1005c1118c9.zip.