📘【Release Note】 Zigbee Bridge Ultra Stable Version History

Bridge Series
1

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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.
v1.20.0(2026/04/15)

v1.20.02026/04/15)

New Features:

  • Added local scene support for SONOFF TRVZB.
  • When performing gateway OTA updates via the Local Web Portal, the firmware changelog is now displayed.

Optimizations:

  • Improved data continuity for SWV-ZN / SWV-ZF devices when switching between Zigbee and Bluetooth modes.

Bug Fixes:

  • Fixed an issue where syncing the gateway to Alexa via Matter Bridge could fail.
  • Fixed an issue where curtain device states from Home Assistant appeared inverted after being synced to third-party Matter platforms.
v1.19.2(2026/03/26)

v1.19.22026/03/26)

New Features:

  • Added support for:
    • SONOFF Hydro ONE Zigbee Smart Water Valves (SWV-ZFU / SWV-ZFE)
    • SONOFF Hydro ONE Lite Zigbee Smart Water Valves (SWV-ZNU / SWV-ZNE)

Optimizations:

  • Improved RF channel scanning logic for faster and more reliable diagnostics.

Bug Fixes:

  • Fixed an issue where the Zigbee module could occasionally crash during startup.
  • Fixed an issue where comfort level readings for SNZB-02P / 02D / 02DR2 could display incorrectly.
v1.19.0(2026/03/16)

v1.19.02026/03/16)

New Features:

  • BTHome Integration:

    • Added support for discovering BTHome devices via Bluetooth LE advertising.
    • Supported data can be exposed to Matter platforms via Matter Bridge, including:
      • Sensor data: temperature, humidity, illuminance
      • Binary sensor data
      • Event data

  • Channel Diagnostics:

    • Added RF channel diagnostics in the Local Web Portal to detect Zigbee/Wi-Fi interference and recommend optimal Zigbee channels.

  • Startup sound volume can now be adjusted from the Settings page.

  • Smart Security for Matter:

    • Arming/disarming can now be exposed to Matter platforms as On/Off toggles via Matter Bridge.

  • Matter SDK Update:

    • Updated to Matter spec v1.5.0 for improved compatibility.

Optimizations:

  • Added “Tamper Alert” as a Smart Security trigger for SONOFF SNZB-04P and SNZB-04PR2.
  • Optimized Smart Security entity in Home Assistant to a Select type while maintaining backward compatibility with existing Switch entities.

Bug Fixes:

  • Improved status reporting for battery-powered Zigbee devices, reducing incorrect offline states.
  • Fixed incorrect temperature and humidity scaling for Tuya TS0201 sensors.
  • Fixed an issue where OTA status was incorrectly shown in the Local Web Portal after updates via Home Assistant.
  • Fixed an issue where TRV temperature data failed to display correctly on NSPanel Pro.
v1.18.0(2026/01/14)

v1.18.02026/01/14)

New Features:

  • Added extra travel time configuration for SONOFF MINI-ZBRBS to ensure full open/close during manual calibration.
  • Added stepping control for SONOFF MINI-ZB2GS, allowing external switch actions to cycle through predefined relay states.
  • Added Adaptive Mode for SONOFF TRVZB to dynamically adjust valve operation for more stable and comfortable temperatures.

Optimizations:

  • Zigbee Stability and Compatibility Improvements:

    • Updated Zigbee2MQTT to v2.6.3 to expand device compatibility.
    • Updated Zigbee module firmware to v8.0.2 to improve connection stability.
    • Optimized offline detection logic for faster response and improved control reliability.
      (Note: Legacy SNZB-01 / 02 / 03 / 04 are excluded due to reporting intervals.)

  • Home Assistant Integration Enhancement:

    • Firmware updates for ZBBridge-U and synced sub-devices can now be checked and installed directly from Home Assistant.
v1.17.2(2026/01/06)

v1.17.22026/01/06)

Version 1.17.2 is a mandatory upgrade.
Devices running versions earlier than 1.17.2 must upgrade to this version before updating to any later version.

Bug Fixes:

  • Fixed an issue where tamper alerts on SONOFF SNZB-04PR2 could be triggered unexpectedly.
  • Fixed an issue where Home Assistant devices synced to Matter could lose connection after a Home Assistant reboot.
v1.17.1(2025/12/18)

v1.17.12025/12/18)

Bug Fixes:

  • Fixed an issue where ZBBridge-U failed to detect available firmware updates for connected Zigbee devices.
v1.17.0(2025/12/10)

v1.17.02025/12/10)

New Features:

  • Matter Bridge Updates:

    • Added support for syncing the following devices to Matter-enabled platforms:
      • SONOFF M5 series
      • SONOFF BASIC-1GS
      • SONOFF MINI-2GS
      • SONOFF S61S / S41S
    • eWeLink manual scenes can now be exposed as momentary triggers in Matter. When triggered, the scene executes and automatically returns to the Off state.
    • Energy data can now be synced to Matter-enabled platforms:
      • SONOFF POWR3: power, current, voltage, and daily energy consumption
      • SONOFF DUALR3: power, current, and voltage

  • Home Assistant Integration Updates:

    • The ZBBridge-U speaker is now exposed in Home Assistant, allowing startup volume adjustment.
    • Added support for adding Zigbee sub-devices via Home Assistant.
    • Smart Security can now be armed and disarmed from Home Assistant.
    • Added a device list in Home Assistant showing Zigbee devices synced from ZBBridge-U.

  • Device groups created in the eWeLink App now support Zigbee 3.0 group control for faster response.

  • Added a dedicated Feedback submission portal on ZBBridge-U.

  • Added brightness calibration for SONOFF MINI-ZBDIM, allowing custom minimum and maximum brightness levels.

Bug Fixes:

  • Fixed an issue where some color-changing lights did not display color controls in the SmartThings app.
  • Fixed an issue where SONOFF TRVZB could occasionally disconnect from its external sensor.
v1.16.0(2025/11/10)

v1.16.02025/11/10)

Optimizations:

  • Matter Bridge now supports syncing monthly energy consumption data from SONOFF S60ZB – including voltage, current, and power readings – to third-party Matter platforms.
  • Added two new temporary modes for SONOFF TRVZB:
  • Boost Mode – heats the room quickly for a short period.
  • Temp. Override Mode – temporarily maintains a set temperature.

Bug Fixes:

  • Fixed an issue where renamed sub-devices occasionally reverted to their default names.
  • Fixed compatibility issues with Tuya TS0001_fingerbot.
v1.15.0(2025/10/14)

v1.15.02025/10/14)

New Features:

  • Introduced Local Web Portal – Access ZBBridge-U on the LAN via http://zbbridgeu.local/ or its IP address, and manage the following features directly from the web portal:
    • Add Zigbee sub-devices.
    • Add eWeLink-Remote devices.
    • Sync sub-devices to Home Assistant via the connected MQTT broker.
    • Sync entities from the authorized Home Assistant to Matter platforms.
    • Link your eWeLink account for local and cloud data sync, and expose eWeLink-supported Wi-Fi devices to Matter platforms.
    • Use ZBBridge-U as a Matter Bridge to sync the bridge itself, Zigbee sub-devices, eWeLink-Remote devices, and Wi-Fi devices under your eWeLink account to Matter platforms.

Bug Fixes:

  • Corrected sensor type mapping for the SONOFF SNZB-03.
  • Fixed an issue where temperature accuracy settings failed to apply correctly on the SONOFF TRVZB.
v1.14.0(2025/09/08)

v1.14.02025/09/08)

New Features:

  • Added support for SONOFF MINI-ZB2GS, the Zigbee 2-gang smart switch.
  • Added support for SONOFF SNZB-01M, the Zigbee 4-button wireless switch.

Matter Bridge Enhancements:

  • Expanded support for eligible Matter-defined device types, including:
    • Room Air Conditioner
    • Air Quality Sensor (TVOC)
    • Smoke and CO Alarm (covering smoke, carbon monoxide, and gas sensors)
v1.13.0(2025/08/08)

v1.13.02025/0808)

New features:

  • Bridge Replacement - Migrate key data from the existing ZBBridge-P/ZBBridge-U to a new ZBBridge-U of the same or higher firmware version, including:
    • Zigbee sub-devices
    • Matter-integrated devices
    • Smart scenes
    • Security settings
  • Now you can use ZBBridge-U as an eWeLink-Remote gateway to pair eligible eWeLink-Remote sub-devices, including:
    • SONOFF R5
    • SONOFF R5W
    • SONOFF S-Mate
    • SONOFF S-MateR2
  • Added support for SONOFF MINI-ZB2GS-L.
  • With authorization, you can use ZBBridge-U as a Matter Bridge to sync Home Assistant entities to other Matter platforms, mapping their capabilities to standard Matter clusters.
v1.12.0(2025/07/09)

v1.12.0(2025/07/09)
New Features:

  • Bridge Replacement - Migrate key data from the current bridge to a new bridge of the same or higher version, including:
    • Zigbee sub-devices
    • Matter-integrated devices
    • Smart scenes
    • Security settings
  • Added support for syncing eligible Zigbee sub-devices from ZBBridge-U to Home Assistant via MQTT.

Optimizations:

  • Matter Bridge enhancements:
    • Added support for Water Leak Detectors.
    • Added scheduling support for Thermostatic Radiator Valves (TRVs) to automate temperature control.
  • SONOFF MINI-ZBRBS can now be used as a trigger or action in local scenes.
v1.11.0(2025/06/09)

New Features:

  • Now supports a wider range of Zigbee devices.
  • Added support for SONOFF MINI-ZBRBS switches.
  • Matter Hub feature now supports syncing bridged Matter-supported sensors and wireless switches along with the Matter Bridge when it is added to ZBBridge-U, including:
    • Sensors:
      • Temperature sensor
      • Temperature and Humidity Sensor
      • Contact Sensor
      • Occupancy Sensor
      • Light Sensor
    • Switches:
      • Generic Switch
v1.10.0(2025/05/08)

Optimization:

  • Matter Hub feature now supports syncing bridged lights along with the Matter Bridge when it is added to ZBBridge-U, including:
    • Dimmable Light
    • On/Off Light
    • Temperature Light
    • Extended Color Light

Bug Fix:

  • Fixed a bug where RSSI levels failed to display on some Zigbee devices bridged to ZBBridge-U.
v1.9.0(2025/04/08)

New Features:

  • Added support for changing Zigbee channels on ZBBridge-U.
  • Added support for smart plugs: SONOFF S60ZBTPF and SONOFF S60ZBTPG.

Optimizations:

  • Now you can select the specific devices and add them to the supported Matter platforms.
  • Matter Bridge now supports syncing eligible Wi-Fi devices linked to the same eWeLink account as ZBBridge-U to the added Matter platforms for control, including:
    • POWR
    • POWCT
    • S60ZBTPF/S60ZBTPG
    • NSPanel
    • DUALR3 Lite
    • M5
    • B05-BL-A60
    • B05-BL-A19
    • iFan04
    • B02
    • D1
    • T5
    • SPM-4Relay
    • B02-BL-A60
    • B02-BL-A19
    • DW2-Wi-Fi
    • L2
    • L3-5M
    • L3-5M-P
  • The Temp. Accuracy feature is available for SONOFF TRVZB, enabling the valve to open/close when the ambient temperature deviates from the target by the set accuracy value.
    (e.g., When the Temp. Accuracy is set to the default of 1°C with a target temperature of 26°C; the SONOFF TRVZB valve closes at 26°C and opens at 25°C.)
  • Reportable changes and reporting intervals configurations are available for sensors, including:
    • SONOFF SNZB-01P
    • SONOFF SNZB-02P
    • SONOFF SNZB-02LD
    • SONOFF SNZB-02WD
  • Setting “No occupancy detected for a duration” as scene triggers are available for sensors:
    • SNZB-03
    • SNZB-03P
    • SNZB-06P
  • Optimized the OTA update process for ZBBridge-U’s sub-devices.
v1.8.0(2025/03/08)

New Features:

  • When ZBBridge-U is used as a Matter Hub, it supports adding the Matter Bridge device type and synchronously integrating its sub-devices into the ZBBridge-U gateway. The supported sub-device types include: Switch/Socket and ON/OFF Plug-in Unit.

  • Supports one-click gateway restart through the eWeLink app.

  • Supports acting as a Matter local scene execution action.
    When the trigger condition is a Matter device and the ZBBridge-U gateway serves as the execution action, then this scene runs locally, ensuring faster and more efficient automation control.

Optimization:

  • Optimize the OTA performance of ZBBridge-U.
v1.7.1(2025/02/19)

New Features:

  • Local scenes and sub-device timers now automatically adjust for Daylight Saving Time.

Optimization:

  • Optimize internal storage performance.

  • Optimized SNZB-03P as scene trigger conditions issues.

v1.7.0(2025/01/08)

New Features:

  • Support SONOFF NEW PRODUCT.

  • Support setting a delay to trigger the scene after no motion is detected for a while when SNZB-03P is used as a scene trigger condition.

  • Support enabling/disabling the network indicator light of ZBMINIR2.

  • Support using the ZBBridge-U’s security mode (arming/disarming) and security alarms (start/stop alarm) as scene trigger conditions.

  • Support ZBBridge-U as a Matter Hub to add Matter devices in the eWeLink App. The supported Matter device types include:
    ○ ON/OFF Plug-in Unit
    ○ On/Off Light
    ○ Dimmable Light
    ○ Extended Color Light
    ○ Color Temperature Light

Optimization:

  • Optimized device synchronization issues.
v1.6.0(2024/12/06)

New Features:

  • Support SONOFF ZBM5 Series.

  • Support temperature and humidity calibration features for the SONOFF SNZB-02D device.

  • Support the new feature of TRVZB of setting an external sensor.

  • Smart security supports setting delayed arming and delayed alarms.

Optimization:

  • Optimize Matter performance and bug fixed.
v1.5.0(2024/11/06)

New Features:

  • Supports uploading custom ringtones to be used as alarm sounds in smart security and smart scenes.

  • Supports displaying the RSSI value of Zigbee sub-devices.

  • Supports adding Zigbee Dongle Plus-E and -P as repeaters to the gateway.

Optimization:

  • Fixed the issue preventing the addition of SONOFF TRVZB devices (version v1.1.4).
v1.4.0(2024/09/09)

New Features:

v1.3.0(2024/08/08)

New Features:

Optimization:

  • Optimize the temperature and humidity reporting interval for SONOFF SNZB-02P and SONOFF SNZB-02D.

  • Optimize the logic for determining when the start time of a scene’s effective period is greater than the end time.

v1.2.0(2024/07/11)

New Features:

  • Zigbee local scene now is available.

    The schedule and scene linkage between Zigbee devices can be executed normally even when the network is disconnected.

  • Supports some IKEA devices.
    ○ TRETAKT plug smart E2204
    ○ THADFRI bulb E27 WW clear 250lm LED1934G3
    ○ THADFRI bulb E27 WW globe 806lm LED2103G5
    ○ THADFRI bulb GU10 ws 345lm LED2106R3
    ○ THADFRI bulb E27 cws globe 806lm LED2109G6
    ○ THADFRI bulb GU10 cws 345lm LED1923R5
    ○ VALLHORN Wireless Montion Seneor E2134
    ○ TRADFRI Montion Seneor E1745
    ○ BADRING Water Leakage Sensor E2202
    ○ VINDSTYRKA E2112
    ○ THADFRI Signal Repeater E1746

2

It would be nice to see support for the Sonoff SNZB-05P, as well as expanding support for the Sonoff Matter Wi-Fi enabled power meters, in terms of adding a power monitoring entity.

I hope that is possible!

3

And the 1.6 Ghangelog? @ANDREAHU

4

The 1.6.0 version doesn’t show up, when trying to upgrade my bridge-u, running firmware 1.5.0.

The upgrade is crucial to me, as I need to connect an external sensor to my TRVZB’s.

Are there any regional restrictions (living in Denmark, Northern Europe)?

How can I force an update, or do it manually?

Thanks :pray:

5

Don’t think there are any.

But usually, firmware updates follow greyscale rules, not all users will receive them at once.

6

What about 1.7.0 changelog?

7

Bridge Ultra with SNZB-05P water leak sensor support. You can’t rename device and do anything else with it. Ultra with latest firmware recognized SNZB-05P water leak sensor device and that’s it. I try with several SNZB-05P sensors without luck. On Zigbee Bridge Pro and iHOST I have no problems with these sensors.

NO support for SmartWise Zigbee smoke sensor (official supported by Sonoff) which is recognized without problems by iHOST (recognized and fully supported)
and Zigbee Bridge Pro (recognized but not supported at this moment).

8

Please provide the device ID and submit the relevant logs, screenshots, or videos through the gateway for further feedback and processing.

9

I think lan mode should be added to zigbee bridge ultra. Although there is no lan mode in zigbee bridge pro, it works without any problems with ihost without internet.

10

Hello,

unfortunately the devices (SNZB-05P water leak sensor and SmartWise smoke detector) are already connected to Zigbee Bridge Pro and iHOST.
In the eWeLink smartphone application, both sensors are visible and work properly, as well as on iHOST. In EweLink Cast, the water sensor is functional, but the Smartwise smoke detector is not supported and is grayed out.
It would be ideal if both sensors works with the Zigbee Ultra bridge, but unfortunately this is not the case and from that reason I must now use two bridges (Ultra and Pro) in the same time, only because the ULTRA SNZB-05P is non-functional and SmartWise is not supported.

SmartWise device smoke detector:
81721f08-2f85-4a24-9aaa-6176f6b3b7db
Water leak sensor SNZB-05P:
0432cf99-0d37-46f1-ae16-59930001a054

Best regards

11

Zigbee Bridge Ultra has a critical problem that I just discovered. Whatever the last action was (for example: pressing a button once), when the internet goes out and comes back, it automatically repeats the last action done again.

12

Better be sure that when you push “destroy my house” button your house will be destroyed if not the first time when Internet come back and you are back online :rofl::rofl::rofl:

13

Snzb-06P insan varlığı sensörĂŒ bridge pro ile birlikte kullanırken 1 saniyede tetikleniyordu ve lambalar yanıyordu. Bridge Ultra daha iyi olmasını beklerdim. Tetikleme sĂŒresi 5 saniye ve bu çok kötĂŒ bir sĂŒre. Bunun nasıl değiƟeceğini bilen var mı

14

When using the Snzb-06P human presence sensor with the bridge pro, it would trigger in 1 second and the lights would light up. I expected the Bridge Ultra to be better. The trigger time is 5 seconds, which is terrible. Does anyone know how to change this?

15

Come on, it might be a good idea to bring LAN mode for ultra. I think it would make sense for it to serve as an antenna for ihost. In this way, the unnecessary burden on the ihost is reduced.

16

1.7.1 changelog please, thank you!

18

No more changelogs here? What’s the matter with updating changelogs? What about 1.9.0 and 1.10.0 updates?

20

I don’t use B.ultra. The response time to a motion or presence sensor is at least 3 seconds. It usually takes 5 seconds. I tested with B.Pro, NS Panel Pro, and B.ultra, and the Pro is clearly ahead. Developers, please improve the response time.

21

ZBBridge-U Bug?

My Net:
1 ZBBridge-U
1 ZBMicro
9 TRVZB
6 SNZB-02D
1 SNZB-02P

I have assigned a different name and room to every single device.
So for example:
SNZB-02D Salone
TRZVB Salone
SNZB-02D Studio
TRZVB Studio
and so on.
Almost every SNZB-02D has a linked TRZVB.

This is the bug I found:
Every day or so some device name reset to default by itself, so no more “SNZB-02D Salone” but simply “SNZB-02D”, no more ”TRZVB Studio” but just ‘TRVZB”
This problem never happened with ZBBridge-P I had been using before. Moreover ZBBridge-P was even more reactive executing commands!
Please EweLink solve this bug, thank you.

22

Bonjour,
C’était la mĂȘme chose pour moi pour corriger le problĂšme. Je me suis connectĂ© directement au hub via son numĂ©ro IP. Et j’ai enregistrĂ© les noms de mes instruments ici
Depuis plus de changement.
Bonne journée
Hello,
It was the same for me to fix the problem. I connected directly to the hub via its IP number. And I saved my instrument names there.
No changes since.
Have a nice day.

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