HiveMQ 4.28.28 Maintenance Release

The HiveMQ team is pleased to announce the availability of HiveMQ 4.28.28.

This maintenance release for the 4.28 series includes the following improvements and bug fixes:

HiveMQ Enterprise MQTT Broker

• Added the configurations of active HiveMQ extensions to the diagnostic archive, with secrets redacted.
• Added Linux kernel sysctl values (network, memory, and file-descriptor settings) to the operating system information in the diagnostic archive when /proc/sys is readable.
• Added a single-writer-watchdog.log file that reports potentially stalled single-writer tasks.
• Added system-wide operating system metrics for context switches, interrupts, CPU frequency, load averages, process counts, and thread counts.
• Fixed a regression that could reduce the TCP buffer size for bridge clients in some cases.
• Fixed excessive warning logs that could clutter the log file when a gauge kept collecting metrics from a disk unmounted at runtime.
• Fixed an issue where a broker cluster behaved as if a node with an older version remained after a rolling upgrade.
• Fixed an issue where replica nodes kept queued messages for a shared subscription after the last client session for the subscription ended.

Have a great day, The HiveMQ Team