Apple has released new firmware for the HomePod mini and the (discontinued) HomePod. Per Apple’s release notes, version 16 includes general performance and stability improvements.
Your HomePod and HomePod mini should automatically update. If not:
- Make sure that your iOS device is updated to the latest version of iOS.
- On your iOS device, open the Home app and tap the house icon in the upper-left corner.
- Tap Software Update.
- Tap Install. This will install the update on all of your HomePod speakers you have set up in your home.