audioOS 9.9.18.4

audioOS

Version

9.9.18.4

Build ID

22L255

File Size

1.22 GB

Release Date

2025-03-31T17:29:36Z

Update Type

Normal release

Delta update - requires 17.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod →

About This Update

audioOS 9.9.18.4 (build 22L255) is an official Apple over-the-air update for the HomePod, released on 2025-03-31T17:29:36Z. The update package is 1.22 GB. This is a delta (partial) update that requires 17.3 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 0842c1e734132bed52d988e399c41be9fa2741c1.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-16260/B7A17C69-BF9D-4439-839C-94E64F2DC352/com_apple_MobileAsset_SoftwareUpdate/0842c1e734132bed52d988e399c41be9fa2741c1.zip

Filename

0842c1e734132bed52d988e399c41be9fa2741c1.zip

Other Devices

HomePod (2nd generation)

AudioAccessory6,1

HomePod mini

AudioAccessory5,1

HomePod (Unknown Model)

AudioAccessory1,2