What’s New

Aeron Sequencer: A reference overview

Learn how Aeron Sequencer solves critical capital markets challenges, the distributed-systems principles behind it, its core architecture, and how it differs from other sequencer designs.

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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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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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Version 1.51.0 released

Aeron 1.51.0 adds a new feature sponsored by Nonco, which is included in the open source version: Persistent Subscriptions, for seamless live/historical streams. This release also includes new C/C++ client APIs for async control, and stricter protocol and cluster reliability.

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The CME-Google Cloud acceleration: why market makers need to speed up cloud migration and how to bridge the cloud performance gap

CME’s accelerated Google Cloud move forces market makers to fast-track low-latency migration; Aeron closes the cloud performance gap with sub-20µs messaging.

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Adaptive announces strategic investment from HSBC and Citi

Funding will accelerate our technical roadmap, driving performance innovations and cementing Aeron® as the open-source cornerstone of modern trading infrastructure.

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On-demand Webinar:
Introducing Aeron Sequencer

Join Aeron co-creator Martin Thompson in conversation with Matt Barrett to take a deeper look at why we are building Aeron Sequencer and what it will bring to the table. Watch now on-demand.

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Aeron & AWS Performance Testing 2026

We've re-tested Aeron on the latest AWS infrastructure, with performance improving by up to 70% for Aeron Transport and 64% for Aeron Cluster since our 2023 benchmarks. OS test harness and methodology are available.

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Tier 1 Investment Bank: Ensuring predictable latency in FX trading with Aeron

A global bank uses Aeron to optimize its FX E-trading pricing & distribution stack: replacing its shared memory solution with Aeron to achieve reduced, predictable latencies, improve resource management, and enhance architectural deployment options.

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Announcing Aeron Sequencer

Adaptive today announces it is developing Aeron Sequencer, a software infrastructure platform designed to tackle the most persistent challenges in modern trading system development: consistency, scalability, performance, and availability.

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Aeron Sequencer vs. Apache Kafka

While both Apache Kafka and Aeron Sequencer leverage a distributed log as a foundational component, their architectural philosophies and performance characteristics make them suited for very different use cases.

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Case Study: Developing a digital asset trading platform with Aeron Sequencer

A leading digital asset trading firm, the trading and custody arm of a major financial services company, has embraced crypto in a big way. But to lead in a 24/7 market, they needed to move beyond their legacy technology stack.... Read more

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Aeron Community MeetUps:
Spring Roadshow 2026

12 March in London & 26 March in New York
Join us for the latest updates and releases on Aeron, a deep dive into state machine replication, guest speaker sessions and networking after-event.

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Architecting 24/7 capital markets with high-availability sequencer designs

Learn how 24/7 capital markets are enabled by consensus-based sequencer architectures. We cover zero‑downtime upgrades, versioned protocols, snapshots, canary deploys, state migration, and rolling changes—keeping systems consistent, resilient, and low‑latency at scale.

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