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Releases: rabbitmq/rabbitmq-server

RabbitMQ 3.7.23

05 Dec 07:27
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.7.23
440da69

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RabbitMQ 3.7.23

RabbitMQ 3.7.23

RabbitMQ 3.7.23 is a maintenance release.
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

MQTT Plugin

Enhancements

AMQP 1.0 Plugin

Enhancements

STOMP Plugin

Enhancements

Web STOMP Plugin

Enhancements

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-3.7.23.tar.xz.

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RabbitMQ 3.7.23-rc.1

03 Dec 03:44
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.7.23-rc.1
440da69

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RabbitMQ 3.7.23-rc.1 Pre-release
Pre-release

RabbitMQ 3.7.23-rc.1

RabbitMQ 3.7.23-rc.1 is a maintenance release candidate.
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

MQTT Plugin

Enhancements

AMQP 1.0 Plugin

Enhancements

STOMP Plugin

Enhancements

Web STOMP Plugin

Enhancements

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-3.7.23.tar.xz.

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RabbitMQ 3.8.2

02 Dec 10:03
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.8.2
9565fca

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RabbitMQ 3.8.2

RabbitMQ 3.8.2

RabbitMQ 3.8.2 is a maintenance release.

Erlang/OTP Compatibility Notes

This release requires Erlang/OTP 21.3 or later.
22.x series is recommended.

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 from 3.7.6 or an older version, 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 at the same time as Erlang. Alternatively the node can be upgraded
to 3.7.18 first, then Erlang 21.x or 22.x, then to RabbitMQ 3.8.x.

Upgrade Doc Guides and Change Log

See 3.8.0 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

Enhancements

  • Raft implementation optimizations.

    GitHub issues: rabbitmq/ra#137, rabbitmq/ra#148

  • Quorum queue optimization: enables local (not going through the leader) delivery from Raft followers
    when appropriate and safe.

    GitHub issues: rabbitmq/rabbitmq-server#2146, rabbitmq/ra#132

  • If x-queue-type argument is not provided at queue declaration time, the type is assumed to be classic
    instead of missing.

    GitHub issue: rabbitmq/rabbitmq-common#341

  • Quorum queue consumer timeout now can be configured using new style configuration file:

    # Hard timeout for quorum queue consumer acknowledgemnts of two minutes
consumer_timeout = 120000

    GitHub issue: rabbitmq/rabbitmq-server#2163

Bug Fixes

  • A quorum queue could produce an empty Raft log segment if node is killed at a particular moment in time,
    which would prevent the node from successfully recovering the log after restart.

    GitHub issues: rabbitmq/ra#138

  • Quorum queue consumer count metric could be duplicated when reported via HTTP API or to a Prometheus scraper.

    GitHub issue: rabbitmq/rabbitmq-server#2176

  • Quorum queue with single active consumer enabled crashes after some basic.get calls. Quorum queues now forbid basic.get when single active consumer is enabled.

    GitHub issue: rabbitmq/rabbitmq-server#2164

CLI Tools

Enhancements

  • It is now possible to export and import definitions without the use of plugins with
    rabbitmqctl export_definitions and rabbitmqctl import_definitions:

    # export as a JSON file
rabbitmqctl export_definitions /path/to/target.file.json

# export as JSON to standard output and pipe to jq
rabbitmqctl export_definitions "-" | jq

# export as a compressed Erlang term file
rabbitmqctl export_definitions /path/to/target.file --format=erlang

# learn more
rabbitmqctl help export_definitions
    # import from a JSON file
rabbitmqctl import_definitions /path/to/target.file.json

# import JSON from standard input
cat /path/to/definitions.json | rabbitmqctl import_definitions "-"

# import from a compressed Erlang term file
rabbitmqctl import_definitions /path/to/target.file --format=erlang

# learn more
rabbitmqctl help import_definitions

    GitHub issue: rabbitmq/rabbitmq-management#749

  • Entities with amq.* prefixes are now skipped during import instead of producing an error.

    GitHub issue: rabbitmq/rabbitmq-server#2170

Bug Fixes

  • rabbitmqctl await_startup failed with an exception when RabbitMQ application was stopped but the
    runtime (Erlang VM) was running.

    GitHub issue: rabbitmq/rabbitmq-server#2158

Management Plugin

Bug Fixes

  • Definition import via HTTP API could fail in if performed via HTTP API (but not management UI)
    and contained operator policies.

    GitHub issue: rabbitmq/rabbitmq-management#751

Enhancements

MQTT Plugin

Enhancements

Bug Fixes

  • Client ID tracker could produce an empty Raft log segment if node is killed at a particular moment in time,
    which would prevent the node from successfully recovering the log after restart.

    GitHub issues: rabbitmq/discussions#4, rabbitmq/ra#138

  • Last Will messages that use QoS 2 will now be downgraded to QoS 1 just like with "regular" published messages.

    GitHub issue: rabbitmq/rabbitmq-mqtt#214

AMQP 1.0 Plugin

Enhancements

STOMP Plugin

Enhancements

Web STOMP Plugin

Enhancements

Prometheus Plugin

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-3.8.2.tar.xz.

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RabbitMQ 3.7.22

27 Nov 06:49
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.7.22
f03f5aa

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RabbitMQ 3.7.22

RabbitMQ 3.7.22

RabbitMQ 3.7.22 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

  • One-off Erlang VM starts used by startup scripts now do as little work as possible
    in order to avoid starting subcomponents, loading configuration and so on.

    GitHub issue: rabbitmq/rabbitmq-common#340

CLI Tools

Bug Fixes

  • rabbitmqctl await_startup failed with an exception when RabbitMQ application was stopped but the
    runtime (Erlang VM) was running.

    GitHub issue: rabbitmq/rabbitmq-server#2158

Management Plugin

Bug Fixes

  • Definition import via HTTP API could fail in if performed via HTTP API (but not management UI)
    and contained operator policies.

    GitHub issue: rabbitmq/rabbitmq-management#751

  • When a node cannot compute the number of file descriptors it uses, it will be more resilient and will
    log warnings (e.g. about missing handle.exe in PATH on Windows) much more proactively.

    GitHub issue: rabbitmq/rabbitmq-management-agent#86

Enhancements

MQTT Plugin

Enhancements

Bug Fixes

  • Last Will messages that use QoS 2 will now be downgraded to QoS 1 just like with "regular" published messages.

    GitHub issue: rabbitmq/rabbitmq-mqtt#214

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-3.7.22.tar.xz.

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RabbitMQ 3.7.22-rc.2

27 Nov 04:42
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.7.22-rc.2
f03f5aa

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RabbitMQ 3.7.22-rc.2 Pre-release
Pre-release

RabbitMQ 3.7.22-rc.2

RabbitMQ 3.7.22-rc.2 is a candidate of 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

  • One-off Erlang VM starts used by startup scripts now do as little work as possible
    in order to avoid starting subcomponents, loading configuration and so on.

    GitHub issue: rabbitmq/rabbitmq-common#340

CLI Tools

Bug Fixes

  • rabbitmqctl await_startup failed with an exception when RabbitMQ application was stopped but the
    runtime (Erlang VM) was running.

    GitHub issue: rabbitmq/rabbitmq-server#2158

Management Plugin

Bug Fixes

  • Definition import via HTTP API could fail in if performed via HTTP API (but not management UI)
    and contained operator policies.

    GitHub issue: rabbitmq/rabbitmq-management#751

  • When a node cannot compute the number of file descriptors it uses, it will be more resilient and will
    log warnings (e.g. about missing handle.exe in PATH on Windows) much more proactively.

    GitHub issue: rabbitmq/rabbitmq-management-agent#86

Enhancements

MQTT Plugin

Enhancements

Bug Fixes

  • Last Will messages that use QoS 2 will now be downgraded to QoS 1 just like with "regular" published messages.

    GitHub issue: rabbitmq/rabbitmq-mqtt#214

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-3.7.22.tar.xz.

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RabbitMQ 3.8.2-rc.1

09 Nov 05:25
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.8.2-rc.1
101d9a2

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RabbitMQ 3.8.2-rc.1 Pre-release
Pre-release

RabbitMQ 3.8.2-rc.1

RabbitMQ 3.8.2-rc.1 is a candidate of a maintenance release that focuses on bug fixes.

Erlang/OTP Compatibility Notes

This release requiresErlang/OTP 21.3.

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 from 3.7.6 or an older version, 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 at the same time as Erlang. Alternatively the node can be upgraded
to 3.7.18 first, then Erlang 21.x or 22.x, then to RabbitMQ 3.8.x.

Upgrade Doc Guides and Change Log

See 3.8.0 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

CLI Tools

Bug Fixes

  • rabbitmqctl await_startup failed with an exception when RabbitMQ application was stopped but the
    runtime (Erlang VM) was running.

    GitHub issue: rabbitmq/rabbitmq-server#2158

Management Plugin

Enhancements

MQTT Plugin

Enhancements

Bug Fixes

  • Last Will messages that use QoS 2 will now be downgraded to QoS 1 just like with "regular" published messages.

    GitHub issue: rabbitmq/rabbitmq-mqtt#214

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-3.8.2.tar.xz.

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RabbitMQ 3.7.22-rc.1

08 Nov 19:19
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.7.22-rc.1
184e2e9

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RabbitMQ 3.7.22-rc.1 Pre-release
Pre-release

RabbitMQ 3.7.22-rc.1

RabbitMQ 3.7.22-rc.1 is a candidate of 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

CLI Tools

Bug Fixes

  • rabbitmqctl await_startup failed with an exception when RabbitMQ application was stopped but the
    runtime (Erlang VM) was running.

    GitHub issue: rabbitmq/rabbitmq-server#2158

Management Plugin

Enhancements

MQTT Plugin

Enhancements

Bug Fixes

  • Last Will messages that use QoS 2 will now be downgraded to QoS 1 just like with "regular" published messages.

    GitHub issue: rabbitmq/rabbitmq-mqtt#214

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-3.7.22.tar.xz.

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RabbitMQ 3.7.21

01 Nov 02:57
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.7.21
d75eb86

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RabbitMQ 3.7.21

RabbitMQ 3.7.21

RabbitMQ 3.7.21 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

LDAP Plugin

Enhancements

STOMP Plugin

Bug Fixes

Web STOMP Plugin

Bug Fixes

Web MQTT Plugin

Bug Fixes

Event Exchange Plugin

Bug Fixes

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-3.7.21.tar.xz.

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RabbitMQ 3.8.1

01 Nov 00:08
@pivotal-rabbitmq-ci pivotal-rabbitmq-ci
v3.8.1
ed70791

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RabbitMQ 3.8.1

RabbitMQ 3.8.1

RabbitMQ 3.8.1 is a maintenance release that focuses on bug fixes.

Erlang/OTP Compatibility Notes

This release requiresErlang/OTP 21.3.

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 from 3.7.6 or an older version, 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 at the same time as Erlang. Alternatively the node can be upgraded
to 3.7.18 first, then Erlang 21.x or 22.x, then to RabbitMQ 3.8.x.

Upgrade Doc Guides and Change Log

See 3.8.0 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

  • Avoid pattern expansion when logging connection closure reason.

    GitHub issue: rabbitmq/rabbitmq-server#2155

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

    GitHub issue: rabbitmq/rabbitmq-server#2130

Enhancements

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 list_unresponsive_queues failed in environments that had quorum queues.

    GitHub issue: rabbitmq/rabbitmq-cli#386

  • 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

Enhancements

  • rabbitmq-diagnostics consume_event_stream is a new command that makes it easier to consume a stream
    of internal commands. This can be useful for troubleshooting and auditing. Previously this was only
    possible via the rabbitmq-event-exchange plugin.

    GitHub issue: rabbitmq/rabbitmq-cli#299

  • rabbitmq-diagnostics check_certificate_expiration is a new health check command
    that fails when any of the certificates used by target node expire within a specified time window.

    rabbitmq-diagnostics certificates is its diagnostics (informative) counterpart that displays all CA and leaf certificates
    used by target node.

    GitHub issue: rabbitmq/rabbitmq-cli#305

Prometheus Plugin

Bug Fixes

  • Prometheus scraping API endpoint was unreasonably strict about the set of content types it accepts from clients,
    which caused Telegraf Prometheus input requests to fail with an406 Not Acceptable response.

    GitHub issue: rabbitmq/rabbitmq-prometheus#12

Management Plugin

Bug Fixes

LDAP Plugin

Enhancements

Kubernetes Peer Discovery Plugin

Bug Fixes

Consul Peer Discovery Plugin

Enhancements

MQTT Plugin

STOMP Plugin

Enhancements

Bug Fixes

Web STOMP Plugin

Bug Fixes

Web MQTT Plugin

Bug Fixes

Erlang Client

Bug Fixes

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-3.8.1.tar.xz.

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RabbitMQ 3.8.1-rc.1

31 Oct 08:07
@michaelklishin michaelklishin
v3.8.1-rc.1
7e9c978

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RabbitMQ 3.8.1-rc.1 Pre-release
Pre-release

RabbitMQ 3.8.1-rc.1

RabbitMQ 3.8.1-rc.1 is a preview of a maintenance release that focuses on bug fixes.

Erlang/OTP Compatibility Notes

This release requiresErlang/OTP 21.3.

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 from 3.7.6 or an older version, 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 at the same time as Erlang. Alternatively the node can be upgraded
to 3.7.18 first, then Erlang 21.x or 22.x, then to RabbitMQ 3.8.0.

Upgrade Doc Guides and Change Log

See 3.8.0 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

Enhancements

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 list_unresponsive_queues failed in environments that had quorum queues.

    GitHub issue: rabbitmq/rabbitmq-cli#386

  • 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

Enhancements

  • rabbitmq-diagnostics consume_event_stream is a new command that makes it easier to consume a stream
    of internal commands. This can be useful for troubleshooting and auditing. Previously this was only
    possible via the rabbitmq-event-exchange plugin.

    GitHub issue: rabbitmq/rabbitmq-cli#299

  • rabbitmq-diagnostics check_certificate_expiration is a new health check command
    that fails when any of the certificates used by target node expire within a specified time window.

    rabbitmq-diagnostics certificates is its diagnostics (informative) counterpart that displays all CA and leaf certificates
    used by target node.

    GitHub issue: rabbitmq/rabbitmq-cli#305

Prometheus Plugin

Bug Fixes

  • Prometheus scraping API endpoint accepted an unreasonably strict set of content types from clients,
    which caused Telegraf Prometheus input requests to fail with an 406 Not Acceptable response.

    GitHub issue: rabbitmq/rabbitmq-prometheus#12

Management Plugin

Bug Fixes

Kubernetes Peer Discovery Plugin

Bug Fixes

Consul Peer Discovery Plugin

Enhancements

MQTT Plugin

STOMP Plugin

Enhancements

Erlang Client

Bug Fixes

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-3.8.1.tar.xz.

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