audioOS 9.9.17.6 (build 21M71) is an official Apple over-the-air update for the HomePod, released on 2024-07-29T20:28:02Z. The update package is 785.05 MB. This is a delta (partial) update that requires 17.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b9f60fab4ca3ebacdf7066ab67ca30ab8cde3fe4.zip.