Version 3.5 - Released April 29th, 2013

• Advanced fan control: Schedules the fan to turn on daily, for a few minutes each hour, or on a timer.
• Sunblock: Automatically adapts to direct sunlight in order to read and set the right temperature.
• Cool to Dry: Uses the air conditioner to dehumidify your home if there is excessive humidity.
• Seasonal Savings: Tweaks your schedule to save energy automatically while keeping you comfortable (available with certain utility programs).
• Rush Hour Rewards: Helps you earn rewards from your energy provider by saving energy during peak "rush hour" times while keeping you comfortable and in control(available with certain utility programs).

Version 3.0.6 - Released April 9th, 2013

• Optimizations for heat-only systems

Version 3.0.5 - Released January 23rd, 2013

• Air filter reminder bug fixes

Version 3.0.4 - Released January 7th, 2013

• Improved remote control availability

Version 3.0.3 - Released November 16th, 2012

• Bug fixes

Version 3.0.2 - Released November 9th, 2012

• Bug fixes

Version 3.0.1 - Released October 2nd, 2012

• Pro Setup support for the 1st generation Nest Learning Thermostat
• Bug fixes

Version 3.0 - Released October 2nd, 2012

• Support for the 2nd generation Nest Learning Thermostat
• Pro Setup view to set up complex systems, including dual fuel systems (heat pump with furnace), whole-home humidifiers or dehumidifers.
• System Match features tailored for your system type:
• forced air systems: Early-On and Filter Reminders
• radiant systems: True Radiant
• heat pump systems: Heat Pump Balance (if AUX and Wi-Fi)
• Improved Auto-Away to better adapt to your home
• Improved Auto-Schedule, now available in Heat • Cool mode
• Renamed Location setting as Your Place setting. Now includes more home info
• Renamed Learning setting as Nest Sense setting. Now includes Early-On, True Radiant or Heat Pump Balance settings and status.
• Renamed Range mode as Heat • Cool mode
• Multilingual (English, French, Spanish)

Version 2.1.3 - Released August 30th, 2012

• Expanded support for Wi-Fi access points including Apple Airport Express (2nd generation)

Version 2.1 - Released May 17th, 2012

• Improvements to Energy History
• Additional bug fixes

Version 2.0 - Released April 5th, 2012

• Airwave
• Updated Energy History view
• Easier access to Away temperatures
• Improvements to Auto-Schedule and Auto-Away
• Additional bug fixes

Version 1.2 - Released March 7th, 2012

• Expanded support for Wi-Fi access points
• Improved Auto-Away performance (for homes with one or multiple Nest Thermostats)
• Additional bug fixes

Version 1.1.3 - Released February 2nd, 2012

• Fixed a battery bug affecting a small portion of Nest thermostats after a service outage

Version 1.1.2 - Released January 24th, 2012

• Improvements and bug fixes for software update installation

Version 1.1.1 - Released January 20th, 2012

• Wider range of away temperatures: down to 40ºF or off for heating, up to 90ºF or off for cooling
• Improvements and bug fixes for Schedule Learning, Auto Away, energy history, Wi-Fi connection, time zones, lock and more

Version 1.0.6 - Released January 11th, 2012

• Bug fixes

Version 1.0.4 - Released December 16th, 2011

• Improved performance for Schedule Learning
• Improved performance for Auto-Away
• Bug fixes

Version 1.0.2 - Released November 22nd, 2011

• Improved performance for heat pumps
• Improved performance for Energy History
• Improved performance for Auto-Away
• Bug fixes

Version 1.0.1 - November, 11th 2011

• Bug Fixes

Version 1.0 - Released October 25th, 2011

• Original release