v2025.6.0-pre0

[Nerivec]

EmberZNet release notes:
https://docs.silabs.com/sisdk-release-notes/2025.6.0/sisdk-zigbee-release-notes/sisdk-zigbee-sdk-release-notes

OpenThread release notes:
https://docs.silabs.com/sisdk-release-notes/2025.6.0/sisdk-ot-release-notes/sisdk-ot-sdk-release-notes

Important

This pre-release does not include coordinator firmware for adapters using software flow control due to an ongoing bug in the Silabs SDK that prevents them from working.

Important

Requires Zigbee2MQTT with zigbee-hersdman 4.2.0 minimum (available in dev branch or July 2025 release)

---

This discussion was created from the release v2025.6.0-pre0.

[nesalkiN]

This is released for Dongle-E by darkxst:
zbdonglee_zigbee_ncp_8.2.0.0_sw_flow_115200.gbl
Software flow control working now?

Btw, when trying to load/request the map in latest dev container (with windfront) with 8.2.0.0, Z2M crashes. Works with 8.0.2.0 and 8.0.3.0. :)

[darkxst]

I tested my 8.2.0 builds on CP version and sw flow control worked, I will have somewhere the older version, will try test tomorrow.

[Nerivec]

Still broken for me with CH on 2025.6.1.
@darkxst did you get a chance to test it?

[nesalkiN]

Still broken for me with CH on 2025.6.1. @darkxst did you get a chance to test it?

Tried your release of 8.2.1. It worked but just for a moment. Then very unstable again. Turning random devices on when I toggle several at the same time. Like before.

Edit. Wait. It could be working. Will give it some more time and testing. I toggled the wrong group in HA and expected other lights to turn on, not in the group. Doh. ;) No errors in the Z2M log.

[Nerivec]

@nesalkiN according to darkxst the CP version should work, so, you should be fine with your variant.
Other feedback on 8.2.x I've had from adapters not affected (not sw flow) is positive so far, so I'd expect adapters without the sw flow bug to be fine (more or less same as 8.0.2).

[nesalkiN]

@nesalkiN according to darkxst the CP version should work, so, you should be fine with your variant. Other feedback on 8.2.x I've had from adapters not affected (not sw flow) is positive so far, so I'd expect adapters without the sw flow bug to be fine (more or less same as 8.0.2).

Ok, great. Thanks. Will see how it goes.
I got errors in the Z2M log (sometimes the zigbee-network froze) and random devices not switching with darkxst release, went to 8.0.3 and forgot about it. On Z2M dev and 8.2.1 now.

Edit: the map works, so thats great

[nesalkiN]

Dev countainer just updated and now it stopped working for me too.
Guess it's best to downgrade fw and wait for updates. :)

It works until i try to change any device state in ha, like turning on a light. Not touching it and letting it run works but not send any commands. It worked before this "release" (the commit in the screenshot worked, now on 50c7d2d6adb9c9366d5c7f829003c84a140f7a19). Sending command makes z2m stop and not able to start again.
Snippet from the log:

[2025-06-30 21:26:42] error:    z2m: Publish 'set' 'state' to 'Lampa xxxx' failed: 'Error: ZCL command 0x04cd15fffe9bcfeb/1 genOnOff.off({}, {"timeout":10000,"disableResponse":false,"disableRecovery":false,"disableDefaultResponse":false,"direction":0,"reservedBits":0,"writeUndiv":false}) failed ({"target":22624,"apsFrame":{"profileId":260,"clusterId":6,"sourceEndpoint":1,"destinationEndpoint":1,"options":4416,"groupId":0,"sequence":122},"zclSequence":6,"commandIdentifier":11} timed out after 10000ms)'
[2025-06-30 21:26:46] error:    zh:ember:ezsp: ERROR Transaction failure; status=ASH_ERROR_TIMEOUTS. Last Frame: [FRAME: ID=52:"SEND_UNICAST" Seq=37 Len=10].
[2025-06-30 21:26:46] error:    zh:ember: Adapter fatal error: ASH_ERROR_TIMEOUTS
[2025-06-30 21:26:46] info:     zh:ember:uart:ash: ASH COUNTERS since last clear:
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Total frames: RX=53, TX=93
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Cancelled   : RX=0, TX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   DATA frames : RX=52, TX=39
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   DATA bytes  : RX=917, TX=487
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Retry frames: RX=0, TX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   ACK frames  : RX=0, TX=53
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   NAK frames  : RX=0, TX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   nRdy frames : RX=0, TX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   CRC errors      : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Comm errors     : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Length < minimum: RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Length > maximum: RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Bad controls    : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Bad lengths     : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Bad ACK numbers : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Out of buffers  : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Retry dupes     : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   Out of sequence : RX=0
[2025-06-30 21:26:46] info:     zh:ember:uart:ash:   ACK timeouts    : RX=0
[2025-06-30 21:26:46] error:    z2m: Publish 'set' 'state' to 'Lampa2 xxxx' failed: 'Error: ZCL command 0x000b57fffe90007c/1 genOnOff.off({}, {"timeout":10000,"disableResponse":false,"disableRecovery":false,"disableDefaultResponse":false,"direction":0,"reservedBits":0,"writeUndiv":false}) failed (~x~> [ZCL to=0x000b57fffe90007c:10797 apsFrame={"profileId":260,"clusterId":6,"sourceEndpoint":1,"destinationEndpoint":1,"options":4416,"groupId":0,"sequence":0}] Failed to send request with status=FAIL.)'
[2025-06-30 21:26:46] info:     zh:ember:uart:ash: Port closed.
[2025-06-30 21:26:46] info:     zh:ember:uart:ash: ======== ASH stopped ========
[2025-06-30 21:26:46] info:     zh:ember:ezsp: ======== EZSP stopped ========
[2025-06-30 21:26:46] info:     zh:ember: ======== Ember Adapter Stopped ========
[2025-06-30 21:26:46] error:    z2m: Adapter disconnected, stopping
[2025-06-30 21:26:46] info:     z2m:mqtt: MQTT publish: topic 'zigbee2mqtt/bridge/state', payload '{"state":"offline"}'
[2025-06-30 21:26:46] info:     z2m: Disconnecting from MQTT server
[2025-06-30 21:26:46] info:     z2m: Stopping zigbee-herdsman...
[2025-06-30 21:26:46] info:     z2m: Stopped zigbee-herdsman
[2025-06-30 21:26:46] info:     z2m: Stopped Zigbee2MQTT
Using '/app/data' as data directory
Starting Zigbee2MQTT without watchdog.
[2025-06-30 21:26:47] info:     z2m: Logging to console, file (filename: log.log)
[2025-06-30 21:26:47] info:     z2m: Starting Zigbee2MQTT version 2.4.0-dev (commit #50c7d2d6adb9c9366d5c7f829003c84a140f7a19
)
[2025-06-30 21:26:47] info:     z2m: Starting zigbee-herdsman (4.3.0)
[2025-06-30 21:26:48] info:     zh:ember: Using default stack config.
[2025-06-30 21:26:48] info:     zh:ember: ======== Ember Adapter Starting ========
[2025-06-30 21:26:48] info:     zh:ember:ezsp: ======== EZSP starting ========
[2025-06-30 21:26:48] info:     zh:ember:uart:ash: ======== ASH Adapter reset ========
[2025-06-30 21:26:48] info:     zh:ember:uart:ash: RTS/CTS config is off, enabling software flow control.
[2025-06-30 21:26:48] info:     zh:ember:uart:ash: Serial port opened
[2025-06-30 21:26:48] info:     zh:ember:uart:ash: ======== ASH starting ========
[2025-06-30 21:26:49] error:    zh:ember:uart:ash: Received ERROR from adapter while connecting, with code=RESET_ASSERT.
[2025-06-30 21:26:53] info:     zh:ember:uart:ash: ======== ASH Adapter reset ========
[2025-06-30 21:26:53] info:     zh:ember:uart:ash: ======== ASH starting ========
[2025-06-30 21:26:58] info:     zh:ember:uart:ash: ======== ASH Adapter reset ========
[2025-06-30 21:26:58] info:     zh:ember:uart:ash: ======== ASH starting ========
[2025-06-30 21:27:03] info:     zh:ember:uart:ash: ======== ASH Adapter reset ========
[2025-06-30 21:27:03] info:     zh:ember:uart:ash: ======== ASH starting ========
[2025-06-30 21:27:08] info:     zh:ember:uart:ash: ======== ASH Adapter reset ========
[2025-06-30 21:27:08] info:     zh:ember:uart:ash: ======== ASH starting ========
[2025-06-30 21:27:13] error:    z2m: Error while starting zigbee-herdsman
[2025-06-30 21:27:13] error:    z2m: Failed to start zigbee-herdsman
[2025-06-30 21:27:13] error:    z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start_crashes-runtime.html for possible solutions
[2025-06-30 21:27:13] error:    z2m: Exiting...
[2025-06-30 21:27:13] error:    z2m: Error: Failed to start EZSP layer with status=HOST_FATAL_ERROR.
    at EmberAdapter.initEzsp (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/emberAdapter.ts:665:19)
    at EmberAdapter.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/ember/adapter/emberAdapter.ts:1547:24)
    at Controller.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/controller/controller.ts:133:29)
    at Zigbee.start (/app/lib/zigbee.ts:68:27)
    at Controller.start (/app/lib/controller.ts:101:13)
    at start (/app/index.js:149:5)

Edit:
Fw zbdonglee_zigbee_ncp_8.0.3.0_sw_flow_115200.gbl works..

Edit 2: The crash comes when I try to toggle several lights at once with 8.2.0. Lots of "timed out after 10000ms"