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HiveMQ 4.9.12 Maintenance Release

by HiveMQ Team

The HiveMQ team is pleased to announce the availability of HiveMQ 4.9.12.

This maintenance release for the 4.9 series includes the following improvements:

HiveMQ Enterprise MQTT Broker

  • Added log statements to provide greater visibility for failure detection states to facilitate testing and debugging.
  • Fixed an issue that could cause incorrect metric incrementation when a node repeatedly leaves and joins a two-node cluster.

HiveMQ Enterprise Extension for Google Cloud Pub/Sub

  • Fixed an issue that could cause a QoS 0 PUBLISH message to be unnecessarily resent to Google Cloud PubSub after the initial delivery attempt fails.

MQTT CLI

  • Added DEBUG level log statements for MQTT 5 SUBACK, PUBACK, PUBREC, PUBREL, and PUBCOMP acknowledgment packets.
  • Fixed an issue that could prevent MQTT CLI connection to a secured broker.
  • Fixed an issue in the help description for the default TLS protocol version that could cause the formation of an incorrect command.

Have a great day, The HiveMQ Team

HiveMQ Team

Team HiveMQ shares deep expertise in MQTT, Industrial AI, IoT data streaming, Unified Namespace (UNS), and Industrial IoT protocols. Our blogs explore real-world challenges, practical deployment guidance, and best practices for building modern, reliable, and a secure data backbone on the HiveMQ platform, along with thought leadership shaping the future of the connected world.

We’re on a mission to build the Industrial AI Platform that transforms industrial data into real-time intelligence, actionable insights, and measurable business outcomes.

Our experts are here to support your journey. Have questions? We’re happy to help. Contact us.

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