RabbitMQ 3.11.0 will make all feature flags introduced during the life of RabbitMQ 3.8.x required. People who initially created clusters using RabbitMQ 3.8.9 or older should enable all feature flags before upgrading to RabbitMQ 3.11! If the feature flags are not enabled, RabbitMQ 3.11.0+ will refuse to start. Feature flags…
RabbitMQ's core protocol has been AMQP 0.9.1. To support MQTT, STOMP, and AMQP 1.0, the broker transparently proxies via its core protocol. While this is a simple way to extend RabbitMQ with support for more messaging protocols, it degrades scalability and performance. In the last 9 months, we re-wrote the…
Quorum Queues are a superior replacement for Classic Mirrored Queues that were introduced in RabbitMQ version 3.8. And there are two complementary reasons why you would need to migrate. First of all, Classic Mirrored Queues were deprecated in 3.9, with a formal announcement posted on August 21, 2021. They will…
Team RabbitMQ and community members have recently identified a curious scenario where a freshly started node could consume a surprisingly high amount of memory, say, 1.5 GiB or so. We'd like to share our findings with the community and explain what short term and longer term workarounds are available. Some…
RabbitMQ 3.12 will be released soon with many new features and improvements. This blog post focuses on the the performance-related differences. The most important change is that the lazy mode for classic queues is now the standard behavior (more on this below). The new implementation should be even more memory…
RabbitMQ now has an official Discord server started by the core team. If you prefer Discord to Slack, feel free to join it and discuss all things RabbitMQ! Introducing RabbitMQ Community Discord Server Thanks to Gavin Roy, the RabbitMQ community has had a place to communicate, help each other and…
Erlang/OTP 27.0 was released on May 20th, 2024. While it contains a lot of exciting features and improvements, unfortunately RabbitMQ currently doesn't work well with this version. We are aware of significant performance regressions, as high as 30% lower message throughput in many common workloads. We are investigating the root…
RabbitMQ 3.13 is now available with support for MQTTv5, stream filtering and significant improvements to classic queue performance, especially for larger messages. Read dedicated blog posts for more details about these changes: support for version 5 of the MQTT protocol support for stream filtering performance improvements RabbitMQ 3.13 is the…
We've already announced two major new features of 3.13 in separate blog posts: support for version 5 of the MQTT protocol support for stream filtering This post focuses on the changes to the classic queues in this release: classic queue storage format version 1 is deprecated new implementation of the…
We have been working for several weeks on a new website for RabbitMQ. We plan to release this significant upgrade shortly after RabbitMQ 3.13.0 is released! At this point, we would love you to visit the new website and tell us what you think :-) In this blog post, I…