115 lines
4.6 KiB
Markdown
115 lines
4.6 KiB
Markdown
## RabbitMQ 3.7.24
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RabbitMQ `3.7.24` is a maintenance release.
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RabbitMQ `3.7.x` series is supported [through March 2020](https://www.rabbitmq.com/versions.html).
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### Erlang/OTP Compatibility Notes
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Per the new Erlang version support policy in effect starting with January 2019,
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this release [**no longer supports Erlang/OTP 20.3**](https://groups.google.com/d/msg/rabbitmq-users/G4UJ9zbIYHs/qCeyjkjyCQAJ).
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Make sure a [supported Erlang version](https://www.rabbitmq.com/which-erlang.html) is used before upgrading.
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[Provisioning Latest Erlang Releases](https://www.rabbitmq.com/which-erlang.html#erlang-repositories) explains
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what package repositories and tools can be used to provision latest patch versions of Erlang `21.3.x` and `22.x`.
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### Compatibility Notes
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#### Upgrading to Erlang 21.x or Later Versions
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When upgrading to this release **and upgrading Erlang to 21.x or later** at the same time, extra care has to be taken.
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Since CLI tools from RabbitMQ releases older than 3.7.7 will fail on Erlang 21 or later,
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RabbitMQ **must be upgraded before Erlang**.
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#### Upgrade Doc Guides and Change Log
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See [3.7.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.7.0) upgrade
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and compatibility notes first if upgrading from an earlier release.
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See the [Upgrading guide](https://www.rabbitmq.com/upgrade.html) for general documentation on upgrades
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and [RabbitMQ change log](https://www.rabbitmq.com/changelog.html) for release notes of other releases.
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### Getting Help
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Any questions about this release, upgrades or RabbitMQ in general are welcome on the
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[RabbitMQ mailing list](https://groups.google.com/forum/#!forum/rabbitmq-users).
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## Changes
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### Core Server
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#### Bug Fixes
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* Autoheal could fail to finish if one of its state transitions initiated by a remote node timed out.
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Contributed by @tomyouyou.
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GitHub issue: [rabbitmq/rabbitmq-server#2209](https://github.com/rabbitmq/rabbitmq-server/pull/2209)
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* Reduced scheduled GC activity in connection socket writer to one run per 1 GiB of data transferred,
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with an option to change the value or disable scheduled run entirely. More frequent binary heap GC runs seem
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unneccesary on Erlang 22.
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Contributed by Aleksander Nycz.
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GitHub issue: [rabbitmq/rabbitmq-common#343](https://github.com/rabbitmq/rabbitmq-common/pull/343)
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* The node now can recover even if virtual host recovery terms file was corrupted.
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Contributed by @tomyouyou.
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GitHub issue: [rabbitmq/rabbitmq-server#2195](https://github.com/rabbitmq/rabbitmq-server/pull/2195)
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* Better error reporting in an edge case with classic queue leader replica election.
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Contributed by Ayanda Dube.
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GitHub issue: [rabbitmq/rabbitmq-common#355](https://github.com/rabbitmq/rabbitmq-common/pull/355)
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* Fixed an incorrect return value in the internal queue data store module.
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Contributed by Sergey Loguntsov.
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GitHub issue: [rabbitmq/rabbitmq-server#2221](https://github.com/rabbitmq/rabbitmq-server/pull/2221)
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* Syslog client is now started even when Syslog logging is configured only for some log sinks.
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GitHub issue: [rabbitmq/rabbitmq-server#2044](https://github.com/rabbitmq/rabbitmq-server/issues/2044)
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#### Enhancements
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* RabbitMQ nodes will now gracefully shutdown when receiving a `SIGTERM` or `SIGQUIT` signals.
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Previously the runtime would invoke a default handler that terminates the VM giving
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RabbitMQ no chance to execute its shutdown steps.
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In addition, `SIGUSER1` and `SIGUSR2` signals are ignored.
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GitHub issue: [rabbitmq/rabbitmq-server#2222](https://github.com/rabbitmq/rabbitmq-server/issues/2222)
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* Some proxy protocol errors are now logged at debug level. This reduces log noise in environments
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where TCP load balancers and proxies perform health checks by opening a TCP connection but never sending
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any data.
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GitHub issue: [rabbitmq/rabbitmq-server#2204](https://github.com/rabbitmq/rabbitmq-server/pull/2204)
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### Management and Management Agent Plugins
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### Enhancements
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* A new `POST /login` endpoint can be used by custom management UI login forms to authenticate the user
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and set the cookie.
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GitHub issue: [rabbitmq/rabbitmq-management#764](https://github.com/rabbitmq/rabbitmq-management/issues/764)
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* Warning about a missing `handle.exe` in `PATH` on Windows is now only logged every few minutes.
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GitHub issue: [rabbitmq/rabbitmq-management-agent#90](https://github.com/rabbitmq/rabbitmq-management-agent/issues/90)
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## Source code archives
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**Warning**: The source code archive provided by GitHub only contains the source of the broker,
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not the plugins or the client libraries. Please download the archive named `rabbitmq-server-3.7.24.tar.xz`.
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