Release Notes

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Broker

• Kafka route — Connect Coreflux directly to Kafka as a producer or consumer, with support for security protocols and configurable batching and compression. See the Kafka Route guide.
• OPC UA Server route — Expose Coreflux data to OPC UA clients with a secure-by-default setup, including support for array and struct nodes. See the OPC UA Server Route guide.
• Modbus Server route — Serve Modbus data over TCP, with experimental support for Serial (RTU) connections. See the Modbus TCP Server Route guide.
• OT route persistence — Server routes (OPC UA Server, Modbus Server) persist their state and recover automatically after a restart, so data isn’t lost on reconnect. See OPC UA Server persistence and Modbus Server persistence.
• OPC UA client certificate authentication — Authenticate OPC UA client connections using PKI certificates for more secure deployments.
• Modbus one-based addressing — Set WITH ONE_BASED_ADDRESSES true on Modbus client and server routes so tag addresses match device manuals that label registers starting at 1. See Modbus addressing (client) and Address notation (server).
• Publish payload as bytes — Forward or retain binary MQTT payloads bit-for-bit with PAYLOAD AS BYTES on PUBLISH TOPIC and KEEP TOPIC. See ACTION Operations.
• Bug fixes — Fixed BACnet alarm retention, EtherNet/IP connection parameters and legacy-style compatibility, a Modbus TCP word-order issue, an OPC UA client connection issue, and a licensing load-order.

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HUB

• LoT Flow viewer — A new interactive view of your route flows, showing entity, topic, and Python nodes alongside live topic values, action traces, and route status.
• UNS viewer — Browse your Unified Namespace as a tree, with search, live payload previews, and a graph layout.
• Data Viewer overhaul — A refreshed explorer with a detailed topic view, timeline, faster topic indexing, and better subscription management.
• In-app release notes — A “What’s New” dialog in the HUB so you can see what’s changed without leaving the app.
• Refreshed HUB styling — Updated visual design and dock layout.
• AI chat improvements — A setup wizard, an artifact panel, and a generally expanded chat experience.
• Expanded dashboard panels — More display components, gauge options, and model-binding support for building richer dashboards.
• Bug fixes — Fixed the LoT compiler and dashboard rendering for ON KEY PRESS, ON THRESHOLD BREACH, conditional handlers, WITH THEME, numeric decimals and suffixes, threshold zones on gauges/charts, and callable actions. Fixed INVOKE ACTION, BIND TO MODEL, the accordion “Add Section,” and tab titles in dashboards. Fixed real-time charts to show both traces with a legend and to correctly distinguish bar vs. line modes. Fixed select/dropdown interactions, topic-to-widget data binding (previously showing a single point instead of the full array), slider and toggle controls publishing incorrect values, icon visibility, multi-panel layouts, and events not being recognized on mount. Fixed the AI agent to properly detect uninstalled routes, and corrected its confirmation prompts. General mobile layout improvements.

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BACnet support for building automation

• BACnet route — Connect Coreflux to building automation systems (HVAC, lighting, metering) and bridge them to MQTT
  • Read live values and write setpoints to BACnet controllers
  • Get instant updates on change, without constant polling
  • Receive alarms and event notifications directly in MQTT

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Fixes - OT tags and route stability

• OT tag JSON publish — Message payload now includes the unit field
• Modbus and EthernetIP routes — Stability improvements

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ON CHANGE trigger and bug fixes

• ON CHANGE trigger for LoT actions — Run actions only when the message payload on a topic is different from the last message on that same topic. Use it for high-frequency telemetry, historians, and forwarding when you do not need to process duplicate values; ON TOPIC still runs on every matching publish.
• Bug fixes — Stability and correctness improvements across the broker, LoT, and HUB

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AI agents, HUB and VS Code extension Beta releases

• Improved HUB (beta) — UI and UX improvements
• HUB standalone installer — Windows and Linux
• AI Agent on HUB
  • Insights mode — Ask questions about running data, using project information as context
  • Agent mode — Build LoT, routes, and dashboards with an AI copilot
• AI Agent route — Create custom agents usable within LoT for AI-driven steps and logic
• Cloud and local LLMs — Support for both on AI features

• Improved VS Code extension (beta)
  • Improved UI and UX
  • See license usage
  • See live MQTT data (topic tree)
  • Data Viewer — View and replay historical and live data for MQTT topics, with viewers for raw, JSON, PDF, GeoJSON (map), audio, and more
  • Execution trace — View and replay historical and live data from LoT execution, including success and error states, published topics, and internal variables
  • Manage secrets and environment variables

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HUB Alpha release, LoT, and broker updates

• HUB (alpha) — Web UI with MQTT Explorer, Log Viewer, Route Manager, LoT Editor, and system configuration
• Support for environment variables and secrets on LoT
• Protobuf support
• REST API route with OAuth and JWT support
• Default project on boot — Load a default project to a Coreflux broker when the broker starts