RabbitMQ 3.9.20

RabbitMQ 3.9.20 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 can be found on GitHub at rabbitmq-server/release-notes.

Debian Package

• RabbitMQ Debian package now lists Erlang 25.0 as supported.

Dependency Upgrades

None in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.20.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.8.34

RabbitMQ 3.8.34 is a maintenance release.
All users are recommended to upgrade to this release.

Obtaining Packages

RabbitMQ releases are distributed via GitHub, Cloudsmith,
and PackageCloud.

Erlang/OTP Compatibility Notes

This release requires Erlang 23.2 and supports Erlang 24.

Provisioning Latest Erlang Releases explains
what package repositories and tools can be used to provision modern Erlang versions.

Upgrade and Compatibility Notes

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

If upgrading from a 3.7.x release, see 3.8.0 release notes
upgrade and compatibility notes first.

If upgrading from a 3.6.x or older release series, first upgrade
to 3.7.27 and then to this version.

Getting Help

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

Changes Worth Mentioning

Debian Package

• RabbitMQ Debian package now lists Erlang 25.0 as supported.

Dependency Upgrades

None in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.8.34.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.10.4

RabbitMQ 3.10.4 is a maintenance release in the 3.10.x release series.

Please refer to the upgrade section from v3.10.0 release notes
if upgrading from a version prior to 3.10.0.

This release requires at least Erlang 23.2, and supports Erlang 24 and 25.
RabbitMQ and Erlang/OTP Compatibility Matrix has more details on
Erlang version requirements for RabbitMQ.

Changes Worth Mentioning

Release notes can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Enhancements

• A minor quorum queue optimization.

  GitHub issue: #4873

Bug Fixes

• Avoid seeding default user in old clusters that still use the deprecated management.load_definitions option.
  This could result in an extra user, guest or under an overriden default user name, to appear
  in addition to the user accounts imported from definitions.

  Note that the default user with well-known name can only connect from localhost by default, so
  this would not expose reasonably configured production nodes to remote connections.

  GitHub issue: #4904

• Streams could run into an exception or fetch stale stream position data in some scenarios.

  GitHub issue: #4898

• rabbitmqctl set_log_level did not have any effect on logging via amq.rabbitmq.log (the system exchange for logging)

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4891

CLI Tools

Bug Fix

• rabbitmq-diagnostics status is now more resilient and won't fail if free disk space monitoring
  repeatedly fails (gets disabled) on the node.

  GitHub issue: #4900

Dependency Upgrades

• ra upgraded from 2.0.11 to 2.0.13

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.10.4.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.9.19

RabbitMQ 3.9.19 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 can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Enhancements

• A minor quorum queue optimization.

  GitHub issue: #4873

Bug Fixes

• Avoid seeding default user in old clusters that still use the deprecated management.load_definitions option.
  This could result in an extra user, guest or under an overriden default user name, to appear
  in addition to the user accounts imported from definitions.

  Note that the default user with well-known name can only connect from localhost by default, so
  this would not expose reasonably configured production nodes to remote connections.

  GitHub issue: #4904

• Streams could run into an exception or fetch stale stream position data in some scenarios.

  GitHub issue: #4898

• rabbitmqctl set_log_level did not have any effect on logging via amq.rabbitmq.log (the system exchange for logging)

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4891

CLI Tools

Bug Fix

• rabbitmq-diagnostics status is now more resilient and won't fail if free disk space monitoring
  repeatedly fails (gets disabled) on the node.

  GitHub issue: #4900

Dependency Upgrades

• ra upgraded from 2.0.11 to 2.0.13

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.19.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.8.33

RabbitMQ 3.8.33 is a maintenance release.
All users are recommended to upgrade to this release.

Obtaining Packages

RabbitMQ releases are distributed via GitHub, Cloudsmith,
and PackageCloud.

Erlang/OTP Compatibility Notes

This release requires Erlang 23.2 and supports Erlang 24.

Provisioning Latest Erlang Releases explains
what package repositories and tools can be used to provision modern Erlang versions.

Upgrade and Compatibility Notes

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

If upgrading from a 3.7.x release, see 3.8.0 release notes
upgrade and compatibility notes first.

If upgrading from a 3.6.x or older release series, first upgrade
to 3.7.27 and then to this version.

Getting Help

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

Changes Worth Mentioning

CLI Tools

Bug Fix

• rabbitmq-diagnostics status is now more resilient and won't fail if free disk space monitoring
  repeatedly fails (gets disabled) on the node.

  GitHub issue: #4900

Dependency Upgrades

None in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.8.33.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.10.2

RabbitMQ 3.10.2 is a maintenance release in the 3.10.x release series.

Please refer to the upgrade section from v3.10.0 release notes
if upgrading from a version prior to 3.10.0.

This release requires at least Erlang 23.2, and supports Erlang 24 and 25.
RabbitMQ and Erlang/OTP Compatibility Matrix has more details on
Erlang version requirements for RabbitMQ.

Changes Worth Mentioning

Release notes can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Enhancements

• 40 to 50% throughput improvement for some workloads where AMQP 0-9-1 clients
  consumed from a stream.

  GitHub issue: #4811

• Configuration of fallback secrets for Shovel and Federation credential obfuscation.
  This feature allows for secret rotation during rolling cluster node restarts.

  Contributed by Lajos @luos Gerecs.

  GitHub issue: #4847

• Reduced memory footprint of individual consumer acknowledgements of quorum queue consumers.

  GitHub issue: #4801

• Reduced filesystem I/O contention for workloads where a large number of classic
  queues v2 (CQv2) were concurrently deleted.

  GitHub issue: #4844

Bug Fixes

• Default log level used a four-character severity abbreviation instead of more
  common longer format, for example, warn instead of warning.

  GitHub issue: #4800

CLI Tools

Enhancements

• rabbitmq-diagnostics status now reports crypto library (OpenSSL, LibreSSL, etc)
  used by the runtime, as well as its version details.

  GitHub issue: #4799

Bug Fixes

• CLI tools failed to run on Erlang 25 because of an old version of Elixir (compiled on Erlang 21)
  was used in the release pipeline. Erlang 25 no longer loads modules
  compiled on Erlang 21 or older.

• rabbitmqctl set_log_level documentation clarification.

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4794

Dependency Upgrades

• credentials_obfuscation was upgraded from v3.0.0 to v3.1.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.10.2.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.9.18

RabbitMQ 3.9.18 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 can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Enhancements

• 40 to 50% throughput improvement for some workloads where AMQP 0-9-1 clients
  consumed from a stream.

  GitHub issue: #4811

• Configuration of fallback secrets for Shovel and Federation credential obfuscation.
  This feature allows for secret rotation during rolling cluster node restarts.

  Contributed by Lajos @luos Gerecs.

  GitHub issue: #4850

• Reduced memory footprint of individual consumer acknowledgements of quorum queue consumers.

  GitHub issue: #4801

Bug Fixes

• CLI tools failed to run on Erlang 25 because of an old version of Elixir (compiled on Erlang 21)
  was used in the release pipeline. Erlang 25 no longer loads modules
  compiled on Erlang 21 or older.

• Default log level used a four-character severity abbreviation instead of more
  common longer format, for example, warn instead of warning.

  GitHub issue: #4800

CLI Tools

Enhancements

• rabbitmq-diagnostics status now reports crypto library (OpenSSL, LibreSSL, etc)
  used by the runtime, as well as its version details.

  GitHub issue: #4799

Bug Fixes

• rabbitmqctl set_log_level documentation clarification.

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4794

Dependency Upgrades

• credentials_obfuscation was upgraded from v3.0.0 to v3.1.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.18.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.8.32

RabbitMQ 3.8.32 is a maintenance release.
All users are recommended to upgrade to this release.

Obtaining Packages

RabbitMQ releases are distributed via GitHub, Cloudsmith,
and PackageCloud.

Erlang/OTP Compatibility Notes

This release requires Erlang 23.2 and supports Erlang 24.

Provisioning Latest Erlang Releases explains
what package repositories and tools can be used to provision modern Erlang versions.

Upgrade and Compatibility Notes

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

If upgrading from a 3.7.x release, see 3.8.0 release notes
upgrade and compatibility notes first.

If upgrading from a 3.6.x or older release series, first upgrade
to 3.7.27 and then to this version.

Getting Help

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

Changes Worth Mentioning

Release notes can be found on GitHub at rabbitmq-server/release-notes.

Core Server

• Configuration of fallback secrets for Shovel and Federation credential obfuscation.
  This feature allows for secret rotation during rolling cluster node restarts.

  Contributed by Lajos @luos Gerecs.

  GitHub issue: #4852

CLI Tools

Enhancements

• rabbitmq-diagnostics status now reports crypto library (OpenSSL, LibreSSL, etc)
  used by the runtime, as well as its version details.

  GitHub issue: #4799

Bug Fixes

• CLI tools failed to run on Erlang 25 because of an old version of Elixir (compiled on Erlang 21)
  was used in the release pipeline. Erlang 25 no longer loads modules
  compiled on Erlang 21 or older.

• rabbitmqctl set_log_level documentation clarification.

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4794

Dependency Upgrades

• aten was upgraded from v0.5.6 to v0.5.8
• credentials_obfuscation was upgraded from v3.0.0 to v3.1.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.8.32.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.10.1

RabbitMQ 3.10.1 is a maintenance release in the 3.10.x release series.

Please refer to the upgrade section from v3.10.0 release notes
if upgrading from a version prior to 3.10.0.

This release requires at least Erlang 23.2, and supports Erlang 24 and 25.
RabbitMQ and Erlang/OTP Compatibility Matrix has more details on
Erlang version requirements for RabbitMQ.

Changes Worth Mentioning

Release notes can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Enhancements

• Classic queue message store and queue index v2 (CQv2) no longer preallocates index files.

  GitHub issue: #4735

• With a lot of busy quorum queues, nodes hosting a moderate number of of leader replicas could
  experience growing memory footprint of one of the Raft implementation processes.

  GitHub issue: #4760

• Re-introduced key file log rotation settings.

  Some log rotation settings were left behind
  during the migration to the standard runtime logger starting with 3.9.0.
  Now some key settings have been re-introduced.

  Contributed by Alex @illotum Valiushko (AWS).

  GitHub issue: #4758

• Cleaned up some compiler options that are no longer relevant.

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4707

Bug Fixes

• Classic queue message store and queue index v2 (CQv2) failed with an exception
  on FreeBSD with ZFS for file system.

  GitHub issue: #4720

• Nodes now make sure that maintenance mode status table exists after node boot
  as long as the feature flag is enabled.

  GitHub issue: #4760

JMS Topic Exchange Plugin

Bug Fixes

• "In flight" messages directed to an exchange that has just been deleted will be
  silently dropped or returned back to the publisher instead of causing an exception.

  GitHub issue: #4696

Dependency Upgrades

• ra upgraded from 2.0.9 to 2.0.11
• credentials_obfuscation was upgraded from v2.4.0 to v3.0.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.10.1.tar.xz
instead of the source tarball produced by GitHub.

RabbitMQ 3.9.17

RabbitMQ 3.9.17 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 can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Enhancements

• With a lot of busy quorum queues, nodes hosting a moderate number of of leader replicas could
  experience growing memory footprint of one of the Raft implementation processes.

  GitHub issue: #4760

• Re-introduced key file log rotation settings.

  Some log rotation settings were left behind
  during the migration to the standard runtime logger starting with 3.9.0.
  Now some key settings have been re-introduced.

  Contributed by Alex @illotum Valiushko (AWS).

  GitHub issue: #4758

• Cleaned up some compiler options that are no longer relevant.

  Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

  GitHub issue: #4707

Bug Fixes

• Nodes now make sure that maintenance mode status table exists after node boot
  as long as the feature flag is enabled.

  GitHub issue: #4760

JMS Topic Exchange Plugin

Bug Fixes

• "In flight" messages directed to an exchange that has just been deleted will be
  silently dropped or returned back to the publisher instead of causing an exception.

  GitHub issue: #4696

Dependency Upgrades

• ra upgraded from 2.0.9 to 2.0.11
• credentials_obfuscation was upgraded from v2.4.0 to v3.0.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.17.tar.xz
instead of the source tarball produced by GitHub.