audioOS 9.9.17.6 (build 21M71) is an official Apple over-the-air update for the HomePod, released on 2024-07-29T20:27:57Z. The update package is 1.59 GB. This is a delta (partial) update that requires 15.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 75935ec4ce98e93b1beeeb542c2f9019b942e2ba.zip.