Update: November 17, 2025 (6:55 PM ET): Google has reached out to Android Authority and provided the following statement:
The Nest Learning Thermostat (1st and 2nd Gen) is no longer supported in the Nest and Home apps, but temperature and scheduling adjustments can still be made directly on the unit. These devices will soon be unpaired and removed from all user accounts. Diagnostic logs, which are not tied to a specific user account, will continue to be sent to Google for service and issue tracking. Users who prefer to stop providing these logs can simply disconnect their device from Wi-Fi via the on-device settings menu.
Original article: November 17, 2025 (11:54 AM ET): Back in October, we reported that owners of first- and second-generation Nest Learning Thermostats were getting tossed a lifeline after Google ended support. Rolled out earlier this month, a solution called No Longer Evil allows owners to restore the remote control functionality that was taken away by the downgrade. Through that project, however, the creator of No Longer Evil learned that your old Nest thermostat is still sending tons of data to Google, even though it’s no longer supported.