audioOS 9.9.16.4 (build 20L497) is an official Apple over-the-air update for the HomePod mini, released on 2023-03-27T17:13:25Z. The update package is 1.44 GB. This is a delta (partial) update that requires 14.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5b90da9c02fdd57deaf81b53eb2f78ea9883aab3.zip.