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3.12.5 release notes

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Michael Klishin 2023-09-21 00:11:45 -04:00
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@ -47,6 +47,67 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
GitHub issue: [#9222](https://github.com/rabbitmq/rabbitmq-server/pull/9222)
* Avoids a potential exception in the credit flow subsystem.
Contributed by @Ayanda-D.
GitHub issue: [#9433](https://github.com/rabbitmq/rabbitmq-server/pull/9433)
* Classic queues v2 (CQv2) that had priorities enabled were reporting their storage version
incorrectly.
Contributed by @gomoripeti (CloudAMQP).
GitHub issue: [#9370](https://github.com/rabbitmq/rabbitmq-server/issues/9370)
#### Enhancements
* Channels that had many thousands of consumers (usually due to a consumer leak in the application)
now consume a lot less CPU resources when the channel is closed.
As part of this optimization, individual `consumer.deleted` internal events are no
longer emitted when a channel is closed, only a `channel.closed` event is. This also
help reduce audit event log size, since those `consumer.deleted` events provided
no useful information in this context.
Contributed by @SimonUnge (AWS).
GitHub issue: [#9356](https://github.com/rabbitmq/rabbitmq-server/pull/9356)
* Initial forward compatibility with later Erlang 26.x and 27.0 releases.
GitHub issue: [#9485](https://github.com/rabbitmq/rabbitmq-server/pull/9485)
* Nodes now log boot time at info level instead of debug. This piece of information
can be useful during root cause analysis.
Contributed by @johanrhodin (CloudAMQP).
GitHub issue: [#9466](https://github.com/rabbitmq/rabbitmq-server/pull/9466)
* Channel interceptors (defined by plugins) now can return one more type of errors.
Contributed by @Ayanda-D.
GitHub issue: [#9459](https://github.com/rabbitmq/rabbitmq-server/pull/9459)
### CLI Tools
#### Bug Fixes
* `rabbitmqctl delete_queue` now handles more queue replica failure scenarios
(that were previously handled by client operations and the HTTP API but not CLI tools).
Contributed by @Ayanda-D.
GitHub issue: [#9324](https://github.com/rabbitmq/rabbitmq-server/pull/9324)
* `rabbitmq-streams delete_replica` now handles scenarios where the replica is hosted
on a node that is not accessiable (reachable).
GitHub issue: [#9282](https://github.com/rabbitmq/rabbitmq-server/issues/9282)
### MQTT Plugin
@ -58,9 +119,31 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
GitHub issue: [#9281](https://github.com/rabbitmq/rabbitmq-server/pull/9281)
### AMQP 1.0 Plugin
#### Bug Fixes
* Listing AMQP 1.0 connections in a system that had both AMQP 1.0 and AMQP 0-9-1 clients connected
resulted in exceptions logged and partial results returned to CLI tools.
GitHub issue: [#9371](https://github.com/rabbitmq/rabbitmq-server/issues/9371)
### Prometheus Plugin
#### Enhancements
* The plugin now exposes a new gauge, `rabbitmq_unreachable_cluster_peers_count`, that indicates how many cluster
peers **cannot** be reached by this node.
Contributed by @gomoripeti (CloudAMQP).
GitHub issues: [#2508](https://github.com/rabbitmq/rabbitmq-server/issues/2508), [#9465](https://github.com/rabbitmq/rabbitmq-server/pull/9465)
## Dependency Upgrades
* `osiris` was upgraded to [`1.6.4`](https://github.com/rabbitmq/osiris/tags)
* `osiris` was upgraded to [`1.6.7`](https://github.com/rabbitmq/osiris/tags)
## Dependency Upgrades