Google is urging households to transition to newer smart home hardware following its October 2025 decision to end software support for first- and second-generation Nest Learning Thermostats. Retailers have slashed the price of the current fourth-generation Nest Learning Thermostat to $219 in a bundle that includes a second-generation Nest Temperature Sensor, offering buyers a $60 discount on the flagship device. [1][2]
The fourth-generation hardware features Soli-powered Dynamic Farsight, Gemini artificial intelligence features, and does not require a C-wire for installation across most heating and cooling systems. Meanwhile, older unsupported models have lost all app connectivity and cloud features, though they still function as basic wall controls for scheduling and adjusting home temperatures. [1][2]
For households reluctant to purchase modern replacements, independent developers have created an open-source custom firmware initiative called No Longer Evil to restore remote functionality, though the process carries a risk of permanently bricking the hardware. Alternatively, consumers can discard obsolete units through Google's prepaid mail-in recycling program or transition to competing brands like Ecobee. [2]