audioOS 9.9.18.1 (build 22J6580) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2024-10-28T15:28:22Z. The update package is 2.5 GB. This is a full OTA update that can be applied from any compatible base version. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: d1bddb6fcc8b39a2be0083f98b8243709ee90d325775db0013f05de173e3a754.aea.