Version 1.52.0 released
Aeron 1.52.0: container-aware CPU affinity, debug log rotation, a new LogInspector CLI, and lower latency in replay workloads. See what changed.
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Used by capital markets firms globally
What's new
Tech Deep Dive: State Machine Replication in Practice
In this technical deep dive, recorded at our last Aeron Meetup in London, Martin Thompson shares how a replicated state machine design can replace much of the complexity that accumulates in traditional microservice architectures.
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An Introduction to Aeron
For people new to Aeron who want a clear technical overview of where this tech fits and what it does. In 30 minutes, Aeron developers walk you through the open-source stack powering some of the most demanding workloads in capital markets: from market data distribution to order management, both on-prem and in the cloud.
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Aeron and QuestDB: building open infrastructure for capital markets data
Open capital markets data infrastructure with Aeron and QuestDB for low-latency trading, SQL analytics, and audit-ready replay.
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What’s new in Aeron: Highlights from the London Meetup 2026
Learn about Aeron 1.49.0 and 1.50.0 enhancements, incl. named Archive and Cluster clients, Aeron response channels over IPC, standalone C++ API removal and the benefits of Persistent Subscriptions; a new open-source feature.
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Persistent Subscriptions: Managing live and replay transitions in Aeron
Discover how Aeron’s new Persistent Subscriptions let late‑joiners switch seamlessly between replay and live streams over UDP or IPC, add automatic slow‑consumer recovery via a clean API, and match ReplayMerge latency with only a modest memory increase.
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Open-source & sponsored by Adaptive.
The Aeron suite of software components includes:
Aeron Transport
High-performance messaging with microsecond latency and extremely high throughput.
Aeron Archive
Zero message loss through reliable, ultra-fast data storage and message replay.
Aeron Key Features
Low Latency Less than 100 μs in the cloud and 18 μs on physical hardware.
Highest Throughput Over 1 million msg/sec at microsecond latency.
Runs Anywhere On-premises, in the cloud and at co-location facilities.
24/7 Availability Hot system upgrades & automatic failover for zero system downtime.
Brokerless Reduce hardware & OPEX costs associated with broker-based systems.
Easy to Implement Spend more time on valuable business logic and less on technical infrastructure.
Resilient Robust fault tolerance for mission-critical applications.
Secure End-to-end encryption for secure low-latency message communication.
Aeron Sequencer
Build your trading platform on the world’s best trading infrastructure.
Aeron Sequencer brings proven replicated state machine architecture to capital markets.
- Accelerate time-to-market
- Enable 24/7 market operations
- Scale development
- Reduce risk & cost of ownership
- Ensure regulatory compliance
- Power business growth
- Gain business agility through application portability
We partner with
Aeron Premium
For business or enterprise use!
Take your Aeron implementation to the next level.
- Complete support with enterprise-level SLA
- Additional Aeron software components
– Aeron Transport Security
– Aeron Transport Kernel Bypass
– Aeron Cluster Warm Standby
- Architectural design consulting
- Developer resources
- Discounted rates for training courses & professional services