audioOS 9.9.18.5 (build 22L572) is an official Apple over-the-air update for the HomePod mini, released on 2025-05-12T17:13:40Z. The update package is 805.96 MB. This is a delta (partial) update that requires 18.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3c54664652c9f54965ad51e039228ee20b38d6f6.zip.