audioOS 9.9.18.2 (build 22K155) is an official Apple over-the-air update for the HomePod, released on 2024-12-11T18:26:00Z. The update package is 725.57 MB. This is a delta (partial) update that requires 18.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bdeb5ad0f1f5d4a49187e88eb67ba73ec50c4dd9.zip.