HiveMQ 4.6.6 Maintenance Release

The HiveMQ team is pleased to announce the availability of HiveMQ 4.6.6.

This maintenance release for the 4.6 series includes the following improvements:

• Improved publish handling for QoS 0 messages during rolling upgrades.
• Significantly improved publish performance for fan-out scenarios that use QoS 0 messages.
• Adjusted handling of QoS level changes at the publish message interceptor for increased stability.
• Improved client event history handling for better performance in cases with large numbers of random client identifiers.
• Streamlined processing of batched publish requests for improved stability and performance.
• Fixed an issue with attention logs in the control center that could cause spurious exceptions.
• Fixed an issue that could cause a memory leak when clients instantly disconnect after connecting.
• Corrected the output to file option in the subscribe command of the MQTT-CLI to ensure proper file creation.
• Fixed an issue in HiveMQ-Swarm where simulated clients would not reuse authentication information after a disconnect event.
• Fixed the create hash command in ESE-helper.

Have a great day, The HiveMQ Team