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RabbitMQ 3.7.20

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RabbitMQ 3.7.20

RabbitMQ 3.7.20 is a maintenance release that focuses on bug fixes.
RabbitMQ 3.7.x series is supported through March 2020.

Erlang/OTP Compatibility Notes

Per the new Erlang version support policy in effect starting with January 2019,
this release no longer supports Erlang/OTP 20.3.
Make sure a supported Erlang version is used before upgrading.

Provisioning Latest Erlang Releases explains
what package repositories and tools can be used to provision latest patch versions of Erlang 21.3.x and 22.x.

Compatibility Notes

Upgrading to Erlang 21.x or Later Versions

When upgrading to this release and upgrading Erlang to 21.x or later at the same time, extra care has to be taken.
Since CLI tools from RabbitMQ releases older than 3.7.7 will fail on Erlang 21 or later,
RabbitMQ must be upgraded before Erlang.

Upgrade Doc Guides and Change Log

See 3.7.0 release notes upgrade
and compatibility notes first if upgrading from an earlier release.

See the Upgrading guide for general documentation on upgrades
and RabbitMQ change log for release notes of other releases.

Getting Help

Any questions about this release, upgrades or RabbitMQ in general are welcome on the
RabbitMQ mailing list.

Changes

Core Server

Bug Fixes

  • Rolling cluster upgrade could fail if new versions were deployed to all cluster nodes at once instead
    of a rolling upgrade-then-restart for each node individually.

    GitHub issue: rabbitmq/rabbitmq-server#2132

  • Improved error handling in a module that continuously registers the node with epmd avoids
    log noise.

    GitHub issue: rabbitmq/rabbitmq-server#2130

CLI Tools

Bug Fixes

  • rabbitmqctl await_startup failed with an exception when effective timeout was set to infinity.

    GitHub issue: rabbitmq/rabbitmq-server#2144

  • rabbitmq-diagnostics check_port_connectivity produced a false positive in an IPv6-only environment.

    Contributed by Gabriele Santomaggio.

    GitHub issue: rabbitmq/rabbitmq-cli#385

  • rabbitmq-diagnostics status, rabbitmq-diagnostics cluster_status, rabbitmq-diagnostics listeners now support
    --formatter=erlang (raw Erlang data structure output)

    GitHub issue: rabbitmq/rabbitmq-cli#383

Kubernetes Peer Discovery Plugin

Bug Fixes

AWS Peer Discovery Plugin

Bug Fixes

Consul Peer Discovery Plugin

Enhancements

Bug Fixes

etcd Peer Discovery Plugin

Bug Fixes

Erlang Client

Bug Fixes

LDAP Plugin

Enhancements

Tracing Plugin

Bug Fixes

  • On Windows, deleting the file used by an active (running) trace resulted in an EACCES exception.

    GitHub issue: rabbitmq/rabbitmq-tracing#31

Source code archives

Warning: The source code archive provided by GitHub only contains the source of the broker,
not the plugins or the client libraries. Please download the archive named rabbitmq-server-3.7.20.tar.xz.