SLZB-OS v3.2.4

The latest version of SLZB-OS (v3.2.4) brings improvements to MQTT integration, internal scripting (automations), Zigbee diagnostics, and overall system stability.

New Features & Enhancements

• Added MQTT module support for scripts, so internal automations can send/receive MQTT messages — usage examples.
• Introduced MQTT API support for SLZB-Ultima — control IR receiver/transmitter, buzzer, WS2812 via MQTT — MQTT API docs.
• MQTT can now be activated independently of Zigbee Hub.
• Pinned socket tasks to a dedicated core for improved performance.
• Zigbee channel scanning added for MR devices (on the Z2M/ZHA page).
• Display of USB mode added for non-U series devices.
• IEEE-related controls disabled for Thread or Zigbee Router firmware.
• Added an SSE module for internal scripting.

Fixes & Improvements

• Fixed possible web-server overflows during reboot waits.
• Fixed MQTT discovery crashes in Zigbee Hub mode.
• Optimized overall web-server performance.
• Fixed incorrect baudrate info for radio3 on Ultima.
• Fixed syslog-related crashes.
• Hidden socket statuses for USB mode on U devices.
• Fixed incorrect display of Z-W addon info on Ultima.
• Tuned serial settings for improved communication.
• Fixed a router reconnect issue on MR4.
• Fixed incorrect baudrate / crash during .gbl metadata parsing.
• Fixed radio module OTA updates in USB mode (U series).
• Fixed an IEEE read issue for MR1U.
• Fixed a bs-target display issue in the addons accordion.
• Fixed socket time/status reporting.