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HiveMQ Release

HiveMQ 4.9.15 Maintenance Release

by HiveMQ TeamJAN 9, 2024

The HiveMQ team is pleased to announce the availability of HiveMQ 4.9.15.

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

HiveMQ Enterprise MQTT Broker

  • Improved non-blocking cluster transport for better cluster stability.
  • Adjusted cluster transport to improve scalability on machines with more than 16 CPU cores.
  • Increased stability of the cluster transport by improving the threading model.
  • Fixed an issue that could allow empty topics in MQTT 3 PUBLISH messages and MQTT 5 PUBLISH response messages.
  • Fixed an issue that could cause the client event history entry for a successful connection to include a session-present flag when no previous session exists.
  • Adjusted how JavaFileStore not found notifications are handled to avoid unnecessary feedback on the WARN log level.
  • Improved error handling in the internal executor service to facilitate debugging.

Have a great day, The HiveMQ Team