Release RabbitMQ 4.2.0 · rabbitmq/rabbitmq-server RabbitMQ 4.2.0 is a new feature release. Breaking Changes and Compatibility Notes Default value for AMQP 1.0 durable field. Starting with RabbitMQ 4.2, if a sending client omits the header section,...

🚀 #RabbitMQ 4.2.0 has just been released!
🔗 github.com/rabbitmq/rab...

🔍 Key highlights:
• Khepri as the default metadata store
• Server-side #SQL filter expressions for streams
• Direct Reply-To support for #AMQP 1.0
• Local shovels

🚀 New in #RabbitMQ 4.2: stream delivery gets way faster for low-ingress use cases.

A smart read-ahead optimization delivers up to 10× better consumption for small chunks.

Dive into the benchmarks & how it works:
www.rabbitmq.com/blog/2025/09...

Broker-Side SQL Filtering with RabbitMQ Streams | RabbitMQ RabbitMQ 4.2 introduces SQL filter expressions for streams, enabling powerful broker-side message filtering.

#RabbitMQ 4.2 introduces broker-side #SQL filtering for streams - making it possible to deliver only the messages your consumers actually need, reducing network traffic and client overhead.

Learn more in our latest blog post:
www.rabbitmq.com/blog/2025/09...

Or watch the demo:
youtu.be/d7SxPmVqfjg

Khepri becomes the default metadata store in #RabbitMQ 4.2

www.rabbitmq.com/blog/2025/09...

AMQP 1.0 over WebSocket | RabbitMQ We are delighted to announce support for AMQP 1.0 over WebSocket in VMware Tanzu RabbitMQ 4.1.

#VMware #Tanzu RabbitMQ 4.1 introduces AMQP 1.0 over WebSocket 🎉

With this new plugin, any browser application can now connect directly to #RabbitMQ using #AMQP 1.0

www.rabbitmq.com/blog/2025/04...

🚀 #RabbitMQ 4.1.0 is out!

This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags

Full release notes 👉 github.com/rabbitmq/rab...

RabbitMQ 4.1 Performance Improvements | RabbitMQ RabbitMQ 4.1 is just around the corner and, as usual, apart from new features,

New blog post on Quorum Queue performance improvements in #RabbitMQ 4.1 🚄

www.rabbitmq.com/blog/2025/04...

"When they say queuing is slow, I’ll say: your operating system is made of queues. What it’s doing is making sure the queues are organised in the best way possible so you experience this incredibly seamless flow of activity - but it’s doing that by managing queues."
John O'Hara, Inventor of #AMQP

#RabbitMQ 4.1 introduces a new #Kubernetes Peer Discovery Mechanism
www.rabbitmq.com/blog/2025/04...

Hear @monadic.bsky.social discuss his experience in the tech industry, including the development of messaging protocol AMQP, the founding of Rabbit Technologies (@rabbitmq.com), and its acquisition by @vmware.bsky.social, as well as his role in establishing the @cncf.io redmonk.com/blog/2025/03...

How Are The Messages Stored? Not in Memory! | RabbitMQ It's time to retire the myth that RabbitMQ stores messages in memory. While it was true in the early days of RabbitMQ,

Today's blog post by @mkuratczyk.bsky.social explains how different queue types in #RabbitMQ store messages:

www.rabbitmq.com/blog/2025/01...

Thank you @theerlef.bsky.social for your blog post:

www.rabbitmq.com/blog/2024/12...

No new quorum queues features are scheduled for RabbitMQ 4.1 but there will be some nice performance improvements, a bit higher throughput, lower latency and much improved consumption performance when consuming from a long backlog.