135 lines
4.6 KiB
Markdown
135 lines
4.6 KiB
Markdown
RabbitMQ `3.11.4` is a maintenance release in the `3.11.x` [release series](https://www.rabbitmq.com/versions.html).
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Please refer to the upgrade section from [v3.11.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.11.0)
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if upgrading from a version prior to 3.11.0.
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This release requires Erlang 25.
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[RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) has more details on
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Erlang version requirements for RabbitMQ.
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### Minimum Supported Erlang Version
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As of 3.11.0, RabbitMQ requires Erlang 25. Nodes **will fail to start** on older Erlang releases.
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Erlang 25 as our new baseline means much improved performance on ARM64 architectures, [profiling with flame graphs](https://blog.rabbitmq.com/posts/2022/05/flame-graphs/)
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across all architectures, and the most recent TLS 1.3 implementation available to all RabbitMQ 3.11 users.
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## Changes Worth Mentioning
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Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.11.x/release-notes).
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### Core Server
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#### Enhancements
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* Import of definition files with many streams is now more efficient.
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GitHub issue: [#6436](https://github.com/rabbitmq/rabbitmq-server/pull/6436)
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* Lower CPU throughput in clusters with many mostly idle streams.
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GitHub issue: [#6436](https://github.com/rabbitmq/rabbitmq-server/pull/6436)
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* Streams with `max_age` retention now attempt to reclaim disk space every hour.
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This is relevant in environments with a lot of mostly inactive streams that
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set `max_age`.
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GitHub issue: [#6436](https://github.com/rabbitmq/rabbitmq-server/pull/6436)
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* Quorum queues are now more resilient to WAL log growth with workloads that
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involve clients that register a consumer and then close the channel
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or connection without ever consuming any deliveries or cancelling
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the consumer.
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GitHub issue: [#6447](https://github.com/rabbitmq/rabbitmq-server/issues/6447)
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* Dead-lettering of a large number of messages to a classic mirrored queues now has lower peak memory footprint.
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GitHub issue: [#5312](https://github.com/rabbitmq/rabbitmq-server/issues/5312)
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#### Bug Fixes
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* When a node encouters an invalid `definitions.local.file` on boot,
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it will refuse to start instead of ignoring the file.
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GitHub issue: [#2610](https://github.com/rabbitmq/rabbitmq-server/issues/2610)
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* Fixed a type analyzer definition.
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Contributed by @illotum (AWS).
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GitHub issue: [#6401](https://github.com/rabbitmq/rabbitmq-server/pull/6401)
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### CLI Tools
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#### Enhancements
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* `rabbitmq-diagnostics check_if_node_is_quorum_critical` and
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`rabbitmq-upgrade await_online_quorum_plus_one` now consider
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stream (not just quorum queues) replica placement when determining
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if target node is quorum-critical.
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GitHub issue: [#6448](https://github.com/rabbitmq/rabbitmq-server/pull/6448)
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* Queue info keys now support more inclusive property names related
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to (deprecated) classic mirrored queues. For example, `mirror_pids`
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can now be used instead of `slave_pids`.
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Contributed by @illotum (AWS).
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GitHub issue: [#2635](https://github.com/rabbitmq/rabbitmq-server/issues/2635)
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* `rabbitmq-diagnostics memory_breakdown` now executes significantly faster
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in environments with a large number (say, tens or hundreds of thousands) of
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quorum queues. Two orders of magnitude faster, in fact.
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GitHub issue: [#6388](https://github.com/rabbitmq/rabbitmq-server/issues/6388)
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#### Bug Fixes
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* Definition export in JSON failed on nodes that used `definitions.skip_if_unchanged`.
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GitHub issue: [#6424](https://github.com/rabbitmq/rabbitmq-server/issues/6424)
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* Using quorum queue-specific commands on streams now results in clearer error messages.
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Contributed by @gomoripeti (CloudAMQP).
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GitHub issue: [#6488](https://github.com/rabbitmq/rabbitmq-server/pull/6488)
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### LDAP Plugin
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#### Bug Fixes
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* LDAP server password could end up in the logs in certain types of exceptions.
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Contributed by @SimonUnge (AWS).
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GitHub issue: [#4842](https://github.com/rabbitmq/rabbitmq-server/issues/4842)
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### STOMP Plugin
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#### Enhancements
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* `x-max-age` [stream setting](https://rabbitmq.com/streams.html) now can be set
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by STOMP clients via a header.
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GitHub issue: [#5003](https://github.com/rabbitmq/rabbitmq-server/issues/5003)
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## Dependency Upgrades
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* `osiris` was upgraded [from `1.3.3` to `1.4.0`](https://github.com/rabbitmq/osiris/tags)
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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-3.11.4.tar.xz`
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instead of the source tarball produced by GitHub.
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