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rabbitmq-server/release-notes/3.8.20.md

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RabbitMQ 3.8.20

RabbitMQ 3.8.20 is a maintenance 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 a3.7.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 are kept under rabbitmq-server/release-notes. Contributors are encouraged to update them together with their changes. This helps with release automation and more consistent release schedule.

Core Server

Enhancements

  • Nodes failed to start when hostname contained non-ASCII (broader Unicode) characters.

    GitHub issue: #3239

  • TLS information delivered in Proxy protocol header is now attached to connection metrics as if it was provided by a non-proxying client.

    GitHub issue: #3175 contributed by @prefiks

CLI Tools

Bug Fixes

  • rabbitmq-upgrade drain and rabbitmq-upgrade revive now log and warning and info level instead of alert (that can show up as error).

    GitHub issue: #3266

Management Plugin

Bug Fixes

  • HTTP API now includes WWW-Authentiate header into 401 responses to requests that contain invalid credentials

    GitHub issue: #3181

  • Queue name is now validated for length according to the AMQP 0-9-1 spec.

    GitHub issue: #3202

Shovel Plugin

Bug Fixes

  • Multiple Shovels could be started in some cases involving node restarts of failures.

    GitHub issue: #3260

Federation Plugin

Bug Fixes

  • Multiple Federation links could be started in some cases involving node restarts of failures.

    GitHub issue: #3260

RabbitMQ Erlang Client

Bug Fixes

  • New releases of the client are again published to Hex.pm.

    GitHub issue: #3247

  • connection_timeout was adjusted to avoid a confusing warning.

    GitHub issue: #3232 contributed by @britto

  • Corrected a typo in direct connection net tick time adjustment.

    GitHub issue: #3233 contributed by @britto

Dependency Upgrades

No dependency changes in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.8.20.tar.xz instead of the source tarball produced by GitHub.