127 lines
4.3 KiB
Markdown
127 lines
4.3 KiB
Markdown
RabbitMQ `3.9.14` is a maintenance release in the `3.9.x` release series.
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Please refer to the **Upgrading to 3.9** section from [v3.9.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.9.0) if upgrading from a version prior to 3.9.0.
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This release requires at least Erlang 23.2, and supports Erlang 24. [RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) has more details on Erlang version requirements for RabbitMQ.
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## Changes Worth Mentioning
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Release notes are kept under [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.9.x/release-notes).
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Contributors are encouraged to update them together with their changes. This helps with release automation and a more consistent release schedule.
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### Core Server
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#### Bug Fixes
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* Restart of a node that hosted one or more stream leaders resulted in
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their consumers not "re-attaching" to the newly elected leader.
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GitHub issue: [#4133](https://github.com/rabbitmq/rabbitmq-server/issues/4133)
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* Large fanouts experienced a performance regression when streams were not
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enabled using a feature flag.
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GitHub issue: [#4086](https://github.com/rabbitmq/rabbitmq-server/pull/4086)
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* Stream management plugin did not support mixed version clusters.
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GitHub issue: [#4082](https://github.com/rabbitmq/rabbitmq-server/issues/4082)
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* Stream deletion did not result in a `basic.cancel` being sent to AMQP 0-9-1 consumers.
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GitHub issue: [#4192](https://github.com/rabbitmq/rabbitmq-server/issues/4192)
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* Stream clients did not receive a correct stream unavailability error in some
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cases.
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GitHub issue: [#4117](https://github.com/rabbitmq/rabbitmq-server/pull/4117)
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* It is again possible to clear user tags and update the password in a single operation.
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GitHub issue: [#4126](https://github.com/rabbitmq/rabbitmq-server/pull/4126)
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#### Enhancements
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* Forward compatibility with Erlang 25.
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GitHub issue: [#4256](https://github.com/rabbitmq/rabbitmq-server/pull/4256)
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* File handle cache efficiency improvements.
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Contributed by @felixhuettner.
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GitHub issue: [#4324](https://github.com/rabbitmq/rabbitmq-server/pull/4324)
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* Uknown stream properties (e.g. those requested by a node that runs a newer version)
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are now handled gracefully.
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GitHub issue: [#4090](https://github.com/rabbitmq/rabbitmq-server/pull/4090)
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* Temporary hostname resolution issues (attempts that fail with `nxdomain`)
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are now handled more gracefully and with a delay of several seconds.
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GitHub issue: [#4233](https://github.com/rabbitmq/rabbitmq-server/pull/4233)
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* Build time compatibility with Elixir 1.13.
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GitHub issue: [#4019](https://github.com/rabbitmq/rabbitmq-server/issues/4019)
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### OAuth 2 AuthN/AuthZ Backend Plugin
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#### Bug Fixes
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* `auth_oauth2.additional_scopes_key` in `rabbitmq.conf` was not converted correctly
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during configuration translation and thus had no effect.
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Contributed by @luos.
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GitHub issue: [#4105](https://github.com/rabbitmq/rabbitmq-server/pull/4105)
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### LDAP AuthN/AuthZ Backend Plugin
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#### Enhancement
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* Adapt to a breaking Erlang 24.3 LDAP client change.
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GitHub issue: [#4287](https://github.com/rabbitmq/rabbitmq-server/pull/4287)
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### Shovel Plugin
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#### Enhacements
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* Shovels now can be declared with `delete-after` parameter set to `0`.
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Such shovels will immediately stop instead of erroring and failing to
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start after a node restart.
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Contributed by @luos.
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GitHub issue: [#4101](https://github.com/rabbitmq/rabbitmq-server/pull/4101)
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### Consul Peer Discovery Plugin
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#### Enhancements
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* Support for Consul 1.1 [response code changes](https://github.com/hashicorp/consul/pull/11950)
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when an operation is attempted on a non-existent health check.
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Suggested by @maestroes.
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GitHub issue: [#4155](https://github.com/rabbitmq/rabbitmq-server/pull/4155)
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## Dependency Upgrades
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* Ra was [upgraded to `2.0.4`](https://github.com/rabbitmq/ra/compare/v2.0.3...v2.0.4)
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* `gen_batch_server` was [upgraded to `0.8.7`](https://github.com/rabbitmq/gen-batch-server/compare/38191672ee0f22a8d5291c6c09f8c07178d565ca...v0.8.7)
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## Source Code Archives
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To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.9.14.tar.xz`
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instead of the source tarball produced by GitHub.
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