release-notes/3.9.8.md
RabbitMQ 3.9.8 is a maintenance release in the 3.9.x release series.
Please refer to the Upgrading to 3.9 section from v3.9.0 release notes if upgrading from a version prior to 3.9.0.
This release requires at least Erlang 23.2, and supports the latest Erlang 24 version, 24.1.2 at the time of release. RabbitMQ and Erlang/OTP Compatibility Matrix has more details on Erlang version requirements for RabbitMQ.
Release notes are kept under rabbitmq-server/release-notes. Contributors are encouraged to update them together with their changes. This helps with release automation and a more consistent release schedule.
When the mandatory flag was used when publishing to classic queues, but publisher confirms were not, channels memory usage would grow indefinitely.
GitHub issue: #3560
rabbitmq-diagnostics memory_breakdown failed to read memory of connection
reader, writer and channel processes.
GitHub issue: #3570
In some environments, Stream replicas advertised IP addresses that could not be reached by cluster peers (eg. IP addresses behind a NAT in a Docker deployment). RabbitMQ node hostnames are now advertised as well so that other peers can resolve them to get an externally visible IP address.
GitHub issue: rabbitmq/osiris#53
More data is exposed via the GET /metrics/detailed endpoint.
GitHub issue: #3520
When setting topic permissions, the list of exchanges in the UI now honors the currently selected virtual host.
Contributed by @LuisCusihuaman.
GitHub issue: #3545
The plugin now logs more details for failed AWS API requests.
Contributed by @tvhong-amazon (AWS)
GitHub issue: #3579
1.2.2To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.9.8.tar.xz instead of the source tarball produced by GitHub.