The RabbitMQ team announced the release of RabbitMQ 3.5.0. This release adds support for priority queues which were available as a plugin before. Performance is improved; in particular messages smaller than configurable size are embedded in the queue index to reduce I/O and memory consumption. Stability of clustering and autoheal partition handling is improved as well. A new pause_if_all_down partition handling mode is added. The management web UI now shows many more I/O statistics. Binary and source distributions of the new release can be found on the download page.
For application integration in Delphi and Free Pascal, Habarisoft offers a commercial client library for RabbitMQ 3.4.0 and newer.