【Release Note】 Zigbee Bridge Ultra V1.21.0 Update

:blue_book:【Release Note】 Zigbee Bridge Ultra Version History

V1.21.0(2026/05/11)

New Features:

  • Beta Program Officially Released

Beta users will get early access to new features. You can enroll in the Beta Program via the Local Web Portal or the eWeLink App.
Beta builds will start at version 3.1.0, with later Beta releases using odd-numbered middle versions.
To restore the Stable version, perform a factory reset on the bridge while it is connected to the internet.
Note: A factory reset will erase all data. Please proceed with caution.

  • Introduced Bridge Firmware Recovery: a new tool, accessible via the bridge hostname or IP address on port 4369, for monitoring the boot process and flashing Stable firmware.
  • Expanded Device Support:
    • SONOFF Hydro One dual-channel smart water valves (SWV-ZF2U / SWV-ZF2E)
    • SONOFF SNZB-06P24 24 GHz presence sensor
    • SONOFF BASIC-ZB1GSP single-channel smart plug with energy monitoring
    • SONOFF SNZB-02M temperature, humidity, and air pressure sensor
    • ZIGBEE_SMOKE_SENSOR smoke detector

Optimizations:

  • Zigbee Compatibility: Updated Zigbee2MQTT to v2.9.1 to expand Zigbee sub-device compatibility.
  • Channel Diagnostics: RF channel diagnostics are now available in the eWeLink App to help identify Zigbee and Wi-Fi channel interference and switch to the optimal Zigbee channel for improved network stability.
  • Temperature Source: SONOFF TRVZB now supports using SONOFF SNZB-02B as an external temperature source.
  • Matter Sync:
    More Wi-Fi devices can now be synced to Matter-enabled platforms, including:
    • SONOFF MINI-2GS
    • SONOFF SAWF-07P / SAWF-08P
    • SONOFF MINI-DIM
    • SONOFF BASIC-1GS
    • SONOFF MINI-RBS
    • SONOFF S61STPF / S41STPB
    • CoolKit CK-BL602-SWP1-02 (262)
    • CoolKit CK-BL602-W102SW18-01 (226)
  • Bridge Name: The bridge now appears as “ZBBridge-U” by default when synced to SmartThings and Alexa via Matter Bridge.
  • Home Assistant Naming: Zigbee devices now display as “brand + model” when synced to Home Assistant.
  • Home Assistant Authentication: Entity data is now fetched only after Home Assistant authentication succeeds.
  • Smart Security Sync: Added an option to choose whether to expose the security arming/disarming to Matter-enabled platforms or Home Assistant.
  • Home Assistant Entity Icons: Home Assistant synced entities can now display the correct icons for easier recognition.

Bug Fixes:

  • Tuya TS0201 Humidity: Fixed an issue where humidity was not shown in the eWeLink App for Tuya TS0201 sensors.
  • IKEA Curtain Control: Fixed an issue where IKEA smart curtains could fail to respond to controls in the eWeLink App.

Any info on the 3.1.0 frimware?

Version 3.1.0 (2026/06/10)

New Features:

  • Added support for SONOFF SNZB-03PR2 Zigbee motion sensor with illuminance reporting.

Optimizations:

  • SONOFF SNZB-02DR2 now supports using SONOFF SNZB-02M and SNZB-02B as external sensors for more accurate room temperature readings.
  • Improved support for metering capabilities on Zigbee single-channel smart plugs with energy monitoring.

thank you, are there any plans to add the zb map feature?

I just updated my ZBBRIDGE-U to Version 3.1.0 (2026/06/10) but it is reported on EweLink app as version 2.0. Strange behavior. Anyone there has the same situation?

Thank you for your detailed feedback. To help the technical team locate the issue more accurately, could you please provide the following information?

  1. Have you joined the Beta program?

  2. Regarding the upgrade to version 3.1.0, did you perform the upgrade via the local web page or through the App? Additionally, could you please provide a screenshot showing version 2.0 displayed in the eWeLink App?
    Thank you again for your cooperation!

Thank you for your suggestion. May I ask what specific scenario you would like to use the Zigbee map for — is it for troubleshooting device signal issues, viewing network topology, or checking device join/leave status? Your use case will help us better prioritize this feature. Thank you!

Actually all the listed options of the Sonoff gateway generally have a problem with network stability and the map is a tool to monitor the entire network. If you look at the forum there are a lot of threads requesting and voting to add this feature.