NodeRed not conect viac mqtt on TTN Stack 3.32 on Rocky Linux 9

I discovered recently, a significant change was introduced in the way MQTT topics are structured in LoRaWAN network servers, such as The Things Stack (TTS). The topic no longer uses the DevEUI to identify devices. Instead, the new format is as follows:

v3/{application-id}/devices/{device-id}/{event-type}

Key Changes:

1. Use of Device ID Instead of DevEUI:

   • The device identifier is now the Device ID, which corresponds to the name assigned to the device in the platform. This replaces the hexadecimal DevEUI previously used in the topic.
   • This makes integrations more user-friendly, as you can assign descriptive names to devices rather than working with hard-to-read identifiers.

2. Topic Structure:

   • The topic includes the application-id, the device-id, and the event type (e.g., uplink, join, ack, etc.).
   • Example:

     v3/my-app/devices/kitchen-sensor/uplink
     

3. Benefits of the Change:

   • Improved Readability: Using the Device ID makes it easier to identify devices, especially in large-scale applications.
   • Enhanced Compatibility: The new structure aligns with The Things Stack V3 standard, ensuring better interoperability and scalability.
   • Greater Flexibility: You can create unique and meaningful names for devices, simplifying device management in applications.

4. Payload Format:

   • Device identification, which was previously part of the topic (via DevEUI), is now included in the message payload in JSON format.
   • Example of payload:

     {
       "end_device_ids": {
         "device_id": "kitchen-sensor",
         "application_ids": {
           "application_id": "my-app"
         },
         "dev_eui": "AABBCCDDEEFF0011"
       },
       "uplink_message": {
         "f_port": 1,
         "frm_payload": "data-encoded",
         "rx_metadata": [...],
         "settings": {...}
       }
     }
     

Recommendations:

• Update Your Code and Workflows: Ensure that your integration scripts and tools are updated to use the new Device ID instead of the DevEUI in the topic structure.
• Refer to the Documentation: Check the official documentation of The Things Stack for detailed examples and guidance on adapting to the new topic format.
• Choose Device IDs Wisely: Since the Device ID is part of the topic, assign unique and meaningful names to devices to make management easier.