audioOS 9.9.18.1 (build 22J580) is an official Apple over-the-air update for the HomePod, released on 2024-10-28T15:28:38Z. The update package is 1.89 GB. This is a delta (partial) update that requires 14.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b376513a6e7145fc583c48187c0deb1dd8a63069.zip.