audioOS 9.9.18.5

audioOS 9.9.18.5 (build 22L572) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2025-05-12T17:13:41Z. The update package is 1.47 GB. This is a delta (partial) update that requires 16.3.2 to already be installed on the device - it cannot be applied from scratch. This update is currently signed by Apple, so it can be applied directly from Settings › General › Software Update.

The OTA payload file is b9e0a820f1f2800bb88ebdeb847da52a47717450d7f7fb5a77676afe8793018e.aea.