Google is shifting its focus from a smorgasbord of new hardware to a slew of Assistant- and software- based features. To begin with, it's rolling out multi-room audio support to all smart displays. Like audio-only Assistant speakers, you can add the screen-equipped devices to speaker groups and play music wherever you are in your home. Also, smart displays and smart speakers alike are receiving a previously hinted-at "Downtime" feature to block access during key hours. A "Filters" option, meanwhile, manages permissions for kids.