Starting today, Google is rolling out massive changes to its smart home technology and all-new devices that are major upgrades compared to its several-years-old Nest gadgets. That means a lot of new AI smarts, courtesy of Gemini , as well as a new naming scheme to learn.

Big changes like this mean getting used to a new tech ecosystem , especially for fans of Google Home and previous Nest devices. So I've rounded up all the major changes Google is making in October and what to watch for in the coming months, too.

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Nest gets a revamp with three upgraded Google Home devices

Nest may be leaving, but Google is releasing newer, more powerful devices. Corin Cesaric/CNET

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