audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

800 MB

Release Date

2025-04-16T17:28:48Z

Update Type

Normal release

Delta update - requires 18.3 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 2025-04-16T17:28:48Z. The update package is 800 MB. This is a delta (partial) update that requires 18.3 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 4edc7cabde4dafbae3c03d47566787265860989ef9b35b59f4f4b60241d6805f.aea.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/mobileassets/082-18555/2BA33215-7E40-4CB4-97B5-03C5D4676B1B/com_apple_MobileAsset_SoftwareUpdate/4edc7cabde4dafbae3c03d47566787265860989ef9b35b59f4f4b60241d6805f.aea

Filename

4edc7cabde4dafbae3c03d47566787265860989ef9b35b59f4f4b60241d6805f.aea

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2