A new version of the Google Home app is rolling out, but there aren't any visible changes making their way out with this one. Instead, this update seems to be focused mostly on adding initial support for some new hardware, including something that sounds like a smart home hub called Zion, and a security device called Castell that may be a door lock. There's also a little motion on a previously teased device that will likely be the Nest Hub Max, and some details on a new "Reactive UI" feature that lights up as you approach.

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