https://wccftech.com/apple-releases-homepod-13-4-5-software-update-with-general-improvements-for-stability-and-quality/

Apart from iOS 13.5 and iPadOS 13.5, Apple has also released HomePod 13.4.5 software update with bug fixes and stability improvements.

Calling all HomePod users, all four of you- there’s a new software update available for everyone out there that improves the overall stability of Apple’s smart speaker. The changelog doesn’t mention much except the following: