audioOS 9.9.18.4

audioOS

Version

9.9.18.4

Build ID

22L255

File Size

1.22 GB

Release Date

2025-03-31T17:29:49Z

Update Type

Normal release

Delta update - requires 17.5 installed first.

Download OTA

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

About This Update

audioOS 9.9.18.4 (build 22L255) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2025-03-31T17:29:49Z. The update package is 1.22 GB. This is a delta (partial) update that requires 17.5 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 d8a6b3cdce678ae8b0bb3e54bce7a579369a06c23827a624eb16f963e476e989.aea.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/mobileassets/082-16023/37CF08F0-21D4-41FB-BEC9-592F48EE6CA5/com_apple_MobileAsset_SoftwareUpdate/d8a6b3cdce678ae8b0bb3e54bce7a579369a06c23827a624eb16f963e476e989.aea

Filename

d8a6b3cdce678ae8b0bb3e54bce7a579369a06c23827a624eb16f963e476e989.aea

Other Devices

HomePod (Unknown Model)