audioOS 9.9.17.6 (build 21M71) is an official Apple over-the-air update for the HomePod, released on 2024-07-29T20:28:00Z. The update package is 1.3 GB. This is a delta (partial) update that requires 16.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 48b5b13913039cfa172705039730d7cb936ecb56.zip.