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The HiveMQ MQTT Client 1.2.2 is released

by HiveMQ Team

The HiveMQ team is pleased to announce the availability of HiveMQ MQTT Client 1.2.2.

This patch release for version 1.2 includes the following improvements:

🐞 Bug fixes

  • Fixed that a failure to shutdown the netty event loop leaves bad executor in cache
  • Fixed that threads are not terminated when using manual acknowledgement with QoS 0
  • The client always reads the DISCONNECT message even if the server closes the connection while the client sends data
  • SSLExceptions and ProxyConnectExceptions are not logged unnecessarily when they are handled correctly

🗒️ Miscellaneous

  • Direct publishing to Maven Central
  • Improved Gradle build files


You can get the new version as a Maven artifact from Maven Central or JitPack.

Also check out the project on GitHub.

We recommend upgrading to this patch release for all HiveMQ MQTT Client library users.

Have a great day,

Silvio from 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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