RabbitMQ 3.12.12 is a maintenance release in the 3.12.x release series.
Please refer to the upgrade section from the 3.12.0 release notes
if upgrading from a version prior to 3.12.0.
This release requires Erlang 25 and supports Erlang versions up to 26.2.x.
RabbitMQ and Erlang/OTP Compatibility Matrix has more details on
Erlang version requirements for RabbitMQ.
Minimum Supported Erlang Version
As of 3.12.0, RabbitMQ requires Erlang 25. Nodes will fail to start on older Erlang releases.
Users upgrading from 3.11.x (or older releases) on Erlang 25 to 3.12.x on Erlang 26
(both RabbitMQ and Erlang are upgraded at the same time) must consult
the v3.12.0 release notes first.
Changes Worth Mentioning
Release notes can be found on GitHub at rabbitmq-server/release-notes.
Core Broker
Bug Fixes
-
Environments with a lot of quorum queues could experience a large Erlang process
build-up. The build-up was temporary but with a sufficiently large number of
quorum queues it could last until the next round of periodic operations,
making it permanent and depriving the node of CPU resources.GitHub issue: #10242
-
RabbitMQ core failed to propagate more authentication and authorization context, for example,
MQTT client ID in case of MQTT connections, to authN and authZ backends. This was not intentional.GitHub issue: #10230
-
Nodes now takes more precaution about persisting feature flag state
(specifically the effects of in-flight changes) during node shutdown.GitHub issue: #10279
Enhancements
-
Simplified some type specs.
Contributed by @ariel-anieli.
GitHub issue: #10228
Stream Plugin
-
One returned error value did not match the RabbitMQ Stream Protocol specification.
GitHub issue: #10277
MQTT Plugin
Bug Fixes
-
Recovering connections from QoS 0 consumers (subscribers) could fail if they were previously connected to a failed node.
GitHub issue: #10252
CLI Tools
Bug Fixes
-
Since #10131 (shipped in
3.12.11, some CLI commands in certain scenarios could fail to accept input via standard output.
AWS Peer Discovery Plugin
Enhancements
-
Updated some type specs.
Contributed by @ariel-anieli.
GitHub issue: #10226
Dependency Upgrades
None in this release.
Source Code Archives
To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.12.12.tar.xz
instead of the source tarball produced by GitHub.