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 800.13 MB. This is a delta (partial) update that requires 18.0 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 818b6686ae96c49b3d8abe26836b94576c7203ed.zip.