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 1.21 GB. This is a delta (partial) update that requires 17.6 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 3dc5a087c98b5e79ad779c9a8afef4b74b262b59.zip.