audioOS 9.9.17.5 (build 21L569) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2024-05-13T17:36:13Z. The update package is 1.23 GB. This is a delta (partial) update that requires 16.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a3a285983c10814755b25e3ac4ed89cfe5199b5c.zip.