audioOS 9.9.18.3 (build 22K557) is an official Apple over-the-air update for the HomePod mini, released on 2025-01-27T18:19:49Z. The update package is 753.4 MB. This is a delta (partial) update that requires 18.1 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 661be70c6d18837a095d65636f7dc16520dbcd92.zip.