release-notes/3.12.8.md
RabbitMQ 3.12.8 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 26.1.x.
RabbitMQ and Erlang/OTP Compatibility Matrix has more details on
Erlang version requirements for RabbitMQ.
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.
Release notes can be found on GitHub at rabbitmq-server/release-notes.
Avoids a potential exception in the autoheal partition handler.
Contributed by @Ayanda-D.
GitHub issue: #9818
raft.segment_max_entries is now validated to prevent the value from overflowing its 16-bit segment file field.
Maximum supported value is now 65535.
GitHub issue: #9733
Significantly faster Shovel startup in environments where there are many of them (one thousand or more).
GitHub issue: #9796
User-provided credentials are now obfuscated using an one-off key pair generated on node boot. This keeps sensitive client state information from being logged by the runtime exception logger.
GitHub issue: #9777
None in this release.
To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.12.8.tar.xz
instead of the source tarball produced by GitHub.