rabbitmq-server/release-notes/4.1.6.md

77 lines
2.8 KiB
Markdown

## RabbitMQ 4.1.6
RabbitMQ `4.1.6` is a maintenance release in the `4.1.x` [release series](https://www.rabbitmq.com/release-information).
It is **strongly recommended** that you read [4.1.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.1.0)
in detail if upgrading from a version prior to `4.1.0`.
### Minimum Supported Erlang Version
[RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/docs/which-erlang) has more details on Erlang version requirements for RabbitMQ.
Nodes **will fail to start** on older Erlang releases.
## Changes Worth Mentioning
Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v4.1.x/release-notes).
### Core Server
#### Bug Fixes
* Enabling the `khepri_db` feature flag while the [Log Exchange](https://www.rabbitmq.com/docs/logging#log-exchange)
was enabled could cause a RabbitMQ node to run out of memory and crash.
GitHub issues: [#14069](https://github.com/rabbitmq/rabbitmq-server/discussions/14069), [#14796](https://github.com/rabbitmq/rabbitmq-server/pull/14796)
* Feature flag state in the registry and on disk were not consistent for a period of time during node boot.
GitHub issue: [#14943](https://github.com/rabbitmq/rabbitmq-server/pull/14943)
### CLI Tools
#### Bug Fixes
* `rabbitmqctl export_definitions` could incorrectly serialize policy and operator policy
definitions.
GitHub issue: [#14800](https://github.com/rabbitmq/rabbitmq-server/pull/14800)
### MQTT Plugin
#### Bug Fixes
* [Resource alarm](https://www.rabbitmq.com/docs/alarms) handling now uses more context: it is aware of individual resources.
When a cluster had multiple resource alarms (namely for memory footprint and free disk space)
in effect, the blocking state was prematurely cleared when only one resource alarm was.
GitHub issue: [#14795](https://github.com/rabbitmq/rabbitmq-server/pull/14795)
### STOMP Plugin
#### Bug Fixes
* [Resource alarm](https://www.rabbitmq.com/docs/alarms) handling now uses more context: it is aware of individual resources.
When a cluster had multiple resource alarms (namely for memory footprint and free disk space)
in effect, the blocking state was prematurely cleared when only one resource was [cleared].
GitHub issue: [#14795](https://github.com/rabbitmq/rabbitmq-server/pull/14795)
### Web MQTT Plugin
#### Bug Fixes
* [Resource alarm](https://www.rabbitmq.com/docs/alarms) handling now uses more context: it is aware of individual resources.
When a cluster had multiple resource alarms (namely for memory footprint and free disk space)
in effect, the blocking state was prematurely cleared when only one resource was [cleared].
GitHub issue: [#14795](https://github.com/rabbitmq/rabbitmq-server/pull/14795)