The HiveMQ team is pleased to announce the availability of HiveMQ CE 2020.3.

This feature release provides plenty of great new features and improvements:

🌟 Features

• Embedded API which allows you to use HiveMQ CE in any Java application
• In memory persistences for use cases that want to avoid disk usage
  • In memory payload persistence
  • In memory queued messages persistence
  • In memory retained messages persistence
  • In memory session persistence
  • In memory subscription persistence
• Extension start priority to control the order in which extensions are started

✨ Improvements

• Enhanced isolation of the parameter objects that are passed to extension interceptors so that different extensions cannot interfere with each other
• Minor memory improvement for fan-out scenarios
• It is now possible to limit the amount of connections via the max-connections configuration

🐞 Bug fixes

• When a ConnectInboundInterceptor is used, MQTT 3.x clients are now not handled as MQTT 5 clients anymore
• Improved takeover handling when multiple concurrent connections share the same client identifier
• Trust store and key store paths now use HIVEMQ_HOME correctly

ℹ️ Misc

• Updated all dependencies
• Improved run scripts
• Improved systemd service

You can find more information about and download the release on the GitHub release page.

You can get the new embedded API as a Maven artifact from Maven Central, JCenter, or JitPack.

Be sure to check out the project on GitHub.

We recommend to upgrade if you are an HiveMQ Community Edition user.

Have a great day,

Silvio from the HiveMQ Team

About Silvio Giebl

Silvio Giebl is a software developer at HiveMQ and maintainer of the HiveMQ MQTT Client open-source library. He is interested in high-performance applications on the JVM and reactive programming.