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HiveMQ Release

HiveMQ 4.40.1 Maintenance Release

by HiveMQ TeamJUN 13, 2025

The HiveMQ team is pleased to announce the availability of HiveMQ 4.40.1.

This maintenance release for 4.40 includes the following improvements:

HiveMQ Enterprise MQTT Broker

  • Fixed an issue that led to erroneous removal of subscriptions under certain circumstances during rolling restarts or upgrades.
  • Fixed an issue that caused the backpressure-active-clients and backpressure-active-receive-buffer metrics to remain high after the clients that caused backpressure were disconnected.

HiveMQ Enterprise Bridge Extension

  • Added an option to force Bridge clients with persistent sessions to resubscribe to the configured topics on reconnect.

Have a great day, The HiveMQ Team