In addition to the iOS 16.3.1 update, Apple today also released a new 16.3.2 update for the original HomePod, HomePod mini, and HomePod 2.
HomePod version 16.3.2 addresses ongoing issues with HomeKit-related Siri requests, according to Apple’s official update log, which was translated by IGeekphone as follows:
The update fixes an issue where smart home requests to Siri could fail, as well as introducing regular performance and stability improvements.