RabbitMQ 3.9.11 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
-
When a TLS-enabled listener failed to stop, it logged all of its settings
which could contain sensitive values.GitHub issue: #3803
Enhancements
-
Quorum queues now store commands for enqueued messages in a more compact format
on disk (some derivative data has been dropped).GitHub issue: #3804
-
queue.declare-okresponse to AMQP 0-9-1 clients operating on a stream could return a ready-for-delivery
message count value that was out of sync with the stream leader replica.GitHub issue: #3814
-
Classic queues now deliver more efficiently on channels that had global QoS changed
during consumer operation.Contributed by @tomyouyou.
GitHub issue: #3805
Prometheus Plugin
Enhancements
-
New optional metrics provided by the
GET /metrics/detailedendpoint. These metrics are cluster-wide,
and therefore must not be aggregated.GitHub issue: #3779
Management Plugin
Bug Fixes
-
A help tip on the policies page was misplaced.
Contributed by @johanrhodin
GitHub issue: #3825
Management Agent Plugin
Enhancements
-
Disabling the plugin will stop metric collection performed periodically by
queues, streams, connections, et cetera.Contributed by @tomyouyou.
GitHub issue: #3800
Dependency Upgrades
None in this release.
Source Code Archives
To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.11.tar.xz
instead of the source tarball produced by GitHub.