Old Nests Dead: Your Smart Thermostat's Fate

Google's decision in October 2025 to cease support for its initial Nest Learning Thermostat models has left many users in a difficult position. These thermostats, designed for longevity, can no longer connect to external apps or receive crucial software updates, despite retaining their basic on-device temperature adjustment and auto-schedule capabilities.

While Google is offering discounts on newer models, some users are exploring alternative solutions. For those with a technical inclination, the open-source project 'No Longer Evil' provides custom firmware that can potentially revive advanced smart features. This involves flashing new firmware, which carries a risk of rendering the device unusable, but offers a path to restored cloud connectivity or integration with platforms like Home Assistant.

Alternatively, Google provides a free recycling program for old devices, ensuring responsible disposal. Users are advised to perform a factory reset before returning their thermostat to protect personal data. Investing in newer smart thermostat models from Google or other brands may offer enhanced energy efficiency through occupancy detection and real-time weather data synchronization. However, for users with predictable routines, older thermostats' built-in scheduling might suffice, supplemented by manual adjustments and economical methods for temperature control.