HomePod 27.2 and tvOS 27.2 release candidates point to Sound Glow for older HomePods and surround-sound support
Apple's 27.2 software cycle reached release-candidate stage on Monday, and the build for the home lineup appears to be carrying more than the new hardware. According to MacRumors, HomePod software 27.2 extends the Sound Glow light effect, which debuted on the HomePod mini 2, to older HomePod and HomePod mini models, while the tvOS 27.2 release candidate lays groundwork for a wireless surround-sound setup built around HomePods.
Apple describes Sound Glow on the HomePod mini 2 as a light display on top of the speaker that glows and pulses with the music, reacting to bass and treble in real time. Colors are matched to the album artwork shown in Now Playing, so the look changes from song to song.