audioOS 9.9.18.5 (build 22L572) is an official Apple over-the-air update for the HomePod, released on 2025-05-12T17:13:15Z. The update package is 1.97 GB. This is a delta (partial) update that requires 14.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0613b81316d14c738b941cb9eee30d3dc0e9a005.zip.