Your Nest Thermostat Might Be Obsolete Soon - Here's What You Need To Know

One of the downsides of the constantly evolving tech landscape is that your devices are bound to become obsolete sooner or later. For some Nest thermostat owners, that dreaded day has finally come. Google, which owns Nest, announced that the first and second generation Learning Thermostats will lose access to app support and software updates beginning October 25, 2025. While there are common problems with Nest thermostats that can be fixed, this one is new, and can not.

According to Google, it's becoming "increasingly challenging" to update these thermostats because of their "early hardware." The affected models are each more than a decade old — not a shabby life span for a smart device. And while they won't be able to connect to the Home or Nest app or receive software updates anymore, they will still be functional as regular ("dumb") thermostats.

Three models are included in the change: The first-generation Nest Learning Thermostat from 2011, the second-generation Nest Learning Thermostat from 2012, and the European version of the latter from 2014. All other older Nest models will remain fully functional, including the 3rd gen Nest Learning Thermostat from 2015, the Nest Thermostat E from 2017, and the Nest Thermostat from 2020.

First, find out which model of Google Nest Thermostat you own. You can find this information on the thermostat's display, on its base, or in the Nest or Home apps. Starting on October 25, 2025, If you have a first- or second-generation thermostat, it will no longer be able to receive software updates, which were previously a regular occurrence and included redesigns, security and bug fixes, and more. They won't connect to the Nest or Home apps, nor will you be able to use Home/Away Assist or Google Assistant with them. In short, you won't be able to control them remotely from your phone or tablet in any way, nor receive any notifications. They will also lose connection to Nest Protect, Nest's smart smoke detector, which was also discontinued earlier this year. Emergency shut-off will no longer work.

If you don't mind these changes, you can still use your older Nest Learning Thermostat as a regular thermostat, adjusting the temperature or schedule on the device itself. Otherwise, you have two options: Switch to another one of the best smart thermostats or upgrade to a new Nest. Google is offering a $130 discount on fourth-generation Nest Learning Thermostats to U.S. owners of the obsolete models, bringing the price from $279.99 down to $149.99. Eligible users will get receive the offer directly from Google Nest. The company also offers a recycling program to dispose of your old thermostat responsibly via mail.