Here is a list of the changes and upgrades we made to the ZEN22 model so far.

VER. 1.0 (released 6/2016)

Original release.
Hardware:

• Included screwless wall plate
• Did NOT include neutral jumper
• Did NOT include 3-way functionality (single pole only)

Firmware: 20.16

• No advanced settings available

VER. 2.0 (released 6/2017)

Hardware:

• Removed wall plate
• Added neutral jumper
• Added Direct 3-way solution
• Added logo on paddle

Firmware: 20.15

• Added advanced settings for paddle control and LED indicator mode

VER. 2.01 (released 12/2017)

Hardware:

• Removed logo from paddle

Firmware: 20.15

• Added a setting to enable/disable LED indicator
• Added communication signaling from LED indicator (blinks when in inclusion/exclusion mode)

VER. 2.02 (released 4/2018)

Firmware: 1.06

• Added OTA firmware updates
• Added ramp rate control (slow / fast only)

VER. 2.03 (released 10/2018)

Firmware: 1.07

• Added double-tap from off to full brightness
• Added a setting to control status after power failure

VER. 3.0 (released 3/2019)

Hardware:

• Updated back cover for easier installation (larger terminal holes)
• Added foam to packaging

Firmware: 3.0

• Changed association settings to send separate reports for manual and Z-Wave control
• Added S2 security
• Added the ability to switch between LED modes with 6 quick clicks
• Added Built-in Timer
• Added full ramp rate control
• Added minimum and maximum brightness level settings
• Added double-tap from on to full / maximum brightness
• Added the ability to reset the switch to factory settings from the device directly
• Added the ability to control load by pressing any of the paddles

VER. 3.01 (released 6/2019)

Hardware:

• Made the LED indicator smaller
• Terminal screws arrive loose (unscrewed) for easier installation

Firmware: 3.01

• Added scene control
• Added double-tap behavior control
• Added the ability to disable local control

VER. 3.02 (released as OTA only 6/2019)

Firmware: 3.02

• Reduced manual control delay related to scene control functionality

VER. 3.03 (released 8/2019)

Firmware: 3.03

• Extended manual dimming time (from 0 to 100% with paddle press-and-hold) to 4 seconds and added a setting to customize the dimming speed

VER. 3.04 (released as OTA only 9/2019)

Firmware: 3.04

• Added a setting to match Z-Wave ramp rate with physical ramp rate

VER. 3.05 (released 3/2020)

Hardware:

• Changed shade of white on paddles to match standard Leviton color for wall plates and wall switches

Firmware: 3.05

• Added custom brightness setting
• Added 3-way switch type setting to use momentary switches (like the ZAC99) in 3-way, 4-way, or 5-way set-ups without configuration limitations and with the ability to dim the light manually from each location

VER. 3.07 (released as OTA only 3/2020)

Firmware: 3.07

• Added a setting to change switch behavior with disabled manual control
• Added night mode brightness: press and hold the lower paddle for a second to turn the light to low brightness

VER. 4.0 (released 9/2020)

Hardware:

• Removed side heat sink tabs

Firmware: 4.0

• Changed the button sequence for enabling smart bulb mode (aka disabling the relay / physical control) to 4-down-and-hold (tap the lower paddle down-down-down-down'n'hold)

VER. 4.01 (released 10/2020 as OTA)

Firmware: 4.01

• Changed power outage behavior in smart bulb mode
• Applied timers to status reports in smart bulb mode
• Changed the setting for Z-Wave ramp rate to automatically match the physical ramp rate (Parameter 17 set to default value 0)
• Applied the ramp rate settings to Z-Wave triggered brightness transitions (multilevel changes)
• Improved single-tap and long-tap timing for scene control triggers

VER. 4.03 (released 2/2021)

Firmware: 4.03

• Added reports sent to Group 2 and Group 3 anytime the paddles are pressed (regardless of the on/off status of the dimmer)
• Parameter 1 set to value 2 will send reports to associated devices in Group 2 and Group 3 according to settings for value 0

VER. 4.04 (released as OTA 5/2021)

Firmware: 4.04

• Corrected the supervision command class for S2 implementation

 

This model has been discontinued and replaced with the ZEN72 dimmer. No further updates are planned for the ZEN22 device.

If your version of the dimmer can be updated via OTA firmware updates, you can access all firmware files here after you register your product and create an account here. Questions? Just reach out to our tech support team.