In addition to iOS 15.5 and iPadOS 15.5, Apple also pushed the official version of the 15.5 software update to HomePod and HomePod mini users. At this time, the specific update content of HomePod software 15.5 is unclear. Users can update the HomePod software through the Home app on their iOS device.
Apple’s software release notes show that the HomePod 15.5 software size is 467.7MB, which is consistent with the previously released RC preview. HomePod 15.5 includes overall performance and stability improvements.
In the previously released 15.4.1 software, Apple addressed an issue where some HomeKit-enabled accessories might not respond when controlled via Siri. The 15.4 software allows HomePod to connect to wireless LANs such as hotels or dorms that require additional steps to log in.