Here are the changed and updates we made to the ZEN73 On/Off Toggle Switch 700 so far.

VER. 1.0 (released 4/2021)

Original release.
Hardware:

• Implemented simple direct 3-way solution (wires like the ZEN76 model and NOT like the old ZEN23 model in 3-way and 4-way set-ups)
• 700 Series Z-Wave chip
• Just 1.16" deep
• No heatsink tabs

Firmware: 1.02

• SmartStart and S2 authenticated security

• Built-in signal repeater

• Smart bulb mode

• Scene control command class (multi-tap triggers)

VER. 10.0 (released 7/2021)

Firmware: 10.0

• Removed manual operation delay with scene control disabled
• Fixed smart bulb behavior after a power outage: the actual status of the relay and the reported status of the relay are both restored correctly now
• Added the ability to disable programming function from the paddles (parameter 17, see all of the settings here)

VER. 800LR (released 12/2023)

Hardware: 2.0

• 800 Series Z-Wave chip

Firmware: 2.10

• Long Range ready
• Fixed central scene bug for control of its own load in smart bulb mode
• Added parameter 18 to disable LED blinking when a setting is changed. See all settings here.
• Changed the manual operation for disabling the relay (smart bulb mode): Hold the UPPER paddle for 10 seconds until the LED indicator starts blinking, then within 2 seconds, tap the upper paddle 5 times quickly to change this mode. The LED indicator will stay solid green for 3 seconds to confirm the change.
• Improved the factory reset procedure: The switch will not lock up if the factory reset is not successful in certain scenarios. 

Your ZEN73 700 Series On/Off Toggle Switch can be updated via OTA firmware updates, here is how to do that. After you register your product and create an account here, you can access all firmware files in this library. If you have any questions, please reach out to our customer service, we reply 7 days a week!