|Written in||C, C++, Swift, Objective-C, assembly language|
|Source model||Closed, with open-source components|
|February 9, 2018|
|Kernel type||Hybrid (XNU)|
|License||Commercial proprietary software|
audioOS (publicly called HomePod Software) is an operating system developed by Apple Inc. for its smart speakers, the HomePod and HomePod Mini. It was launched alongside the release of the original HomePod, released on February 9, 2018.
After the release of the HomePod's first update, iOS 11.3, users complained online that the update had worsened their HomePod's bass and decreased its loudness, which was not alluded to in Apple's official release notes. Dwight Silverman of the Houston Chronicle agreed with these observations, though Apple denied that the update contained any updates to the HomePod's equalization settings.
The iOS 13.2 update had a bug which would brick HomePods if a system reset was attempted; Apple withdrew the update.
audioOS 14.1 added the Intercom feature.
In 2021, an Apple job listing referenced a non-existent "homeOS" operating system, echoing previous Bloomberg leaks about possible future Apple products for the living room that would merge the Apple TV and HomePod.
audioOS's main user-facing features are AirPlay 2 and Siri.
Though it was initially a fork of iOS, since version 13.4, it is a fork of tvOS. Software updates are installed automatically over-the-air, but can also be installed manually through the Home app.
While Apple publicly calls this OS "HomePod Software", the build manifest in .ipsw update files for the HomePod shows its name as "audioOS".
|Name||Most recent version||Release date|
|iOS 11||11.4.1||July 9, 2018|
|iOS 12||12.4||July 17, 2019|
|iOS 13||13.4.6||June 1, 2020|
|audioOS 14||14.7||July 19, 2021|
|audioOS 15||15.6||July 20, 2022|
|audioOS 16||16.4||March 27, 2023|
|Legend: Obsolete Current Beta|