audioOS 9.9.18.2 (build 22K155) is an official Apple over-the-air update for the HomePod, released on 2024-12-11T18:25:56Z. The update package is 1.8 GB. This is a delta (partial) update that requires 15.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2a8e174eaf847b09e57476d5fb9fd832064bf343.zip.