HiveMQ 4.7.3 Maintenance Release

HiveMQ 4.7.3 Maintenance Release

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Written by The HiveMQ Team

Category: HiveMQ Release

Published: December 21, 2021


The HiveMQ team is pleased to announce the availability of HiveMQ 4.7.3.

This maintenance release for the 4.7 series includes the following improvements:

  • Improved memory usage of the client event history after topology changes.
  • Fixed an issue to ensure that the HiveMQ Extension SDK gets the correct default values for CONNECT and Last Will messages.
  • Significantly increased the amount of information that is provided in warn level logs for extensions.
  • Improved stability of the HiveMQ Enterprise SDK consumer service.
  • Fixed an issue that could cause a HiveMQ license to expire one day too early.
  • Fixed an issue that could prevent a delayed Will Message from being sent.
  • Fixed an issue that could cause improper handling of Will Messages in rare cases.
  • Fixed an issue where a Will Message was not properly removed during a cluster merge.
  • Fixed an issue that could lead to multiple clients with the same ID being connected after a client take-over.
  • Fixed an issue where a node is waiting for operational cluster members during a merge.
  • Corrected an issue that could cause an error during MQTT 3.1 client subscription.
  • Corrected an issue that could prevent proper validation of the HiveMQ Enterprise Security Extension configuration in certain cases.
  • Significantly reduced heap usage for use cases with high numbers of queued messages.


Get HiveMQ 4.7.3 now

If you currently use HiveMQ 4.x, we recommend upgrading to version 4.7.3.

Have a great day, The HiveMQ Team

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