RabbitMQ - v3.9.13

RabbitMQ 3.9.13 is a maintenance release in the 3.9.x release series.

Please refer to the Upgrading to 3.9 section from v3.9.0 release notes if upgrading from a version prior to 3.9.0.

This release requires at least Erlang 23.2, and supports Erlang 24. RabbitMQ and Erlang/OTP Compatibility Matrix has more details on Erlang version requirements for RabbitMQ.

Changes Worth Mentioning

Release notes are kept under rabbitmq-server/release-notes.
Contributors are encouraged to update them together with their changes. This helps with release automation and a more consistent release schedule.

Core Server

Bug Fixes

• Disk space monitor now correctly parses output on (at least some) systems where non-ASCII characters are used in paths.

GitHub issue: #3970

• Stream leader election is now deterministic when cluster is undergoing a rolling upgrade.

GitHub issue: #3967

Enhancements

• Queue and binding definition import can be delayed until a moment
  when at least N nodes (e.g. three) have joined the cluster. This way imported quorum queues will have a desired
  number of replicas from the start.

GitHub issue: #3986

Dependency Upgrades

• Osiris was upgraded to 1.2.4

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.13.tar.xz
instead of the source tarball produced by GitHub.