audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

1.47 GB

Release Date

2025-04-16T17:28:45Z

Update Type

Normal release

Delta update - requires 16.4.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod (2nd generation) →

About This Update

audioOS 9.9.18.4.1 (build 22L261) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2025-04-16T17:28:45Z. The update package is 1.47 GB. This is a delta (partial) update that requires 16.4.1 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 58c3546af7442e324c93044910ce36015485e5a26dc29d4b150ed5a393b5bfb8.aea.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/mobileassets/082-18702/003F0F29-63E4-4B78-AC6B-561495D48F64/com_apple_MobileAsset_SoftwareUpdate/58c3546af7442e324c93044910ce36015485e5a26dc29d4b150ed5a393b5bfb8.aea

Filename

58c3546af7442e324c93044910ce36015485e5a26dc29d4b150ed5a393b5bfb8.aea

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2