audioOS 9.9.18.5 (build 22L572) is an official Apple over-the-air update for the HomePod mini, released on 2025-05-12T17:13:37Z. The update package is 1.45 GB. This is a delta (partial) update that requires 16.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ea29ef674916299426e49a1c88ba91d68051c556.zip.