What’s New

Aeron-powered trading technology: get to know the capital markets infrastructure stack that grows with you

We've reorganised Weareadaptive.com to make one thing obvious at a glance: our Aeron technology and the expertise that sits alongside it, and how together they help capital markets firms move faster on the most performant trading technology foundations available.

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Eventual consistency: When your systems disagree on an order status, the firm acts on the wrong picture

We discuss why inconsistent views of orders, positions, and risk create operational and regulatory exposure, and what it takes to eliminate the gap.

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Version 1.53.0 released

This release includes breaking changes — please review before upgrading. The focus is on simplifying Aeron's event-logging mechanism (no more Java agent required), clearer thread naming for diagnostics, and finer-grained error handling for C/C++ Archive clients.

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Bitvavo – Scaling a 24/7 crypto exchange with Aeron Cluster

Marcos Maia and Oleg Lobanov explain how Bitvavo rebuilt its 24/7 crypto exchange on Aeron Cluster and Aeron Archive to deliver deterministic consistency, resilience, fault tolerance, and predictable low-latency performance under heavy load.

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Trading system development with AI: cost moves from writing code to trusting it

AI makes trading systems fast to build. This post is about making them trustworthy: use AI where you differentiate; let a hardened platform own the code that must not fail.

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Bullish – Leveraging Aeron Sequencer to scale a regulated crypto exchange

Pierre Falda shares how Aeron Sequencer became a game changer for Bullish, alongside Aeron Archive, helping build a deterministic, resilient, cloud-native exchange for institutional crypto trading. Utilizing Aeron across the core platform, Bullish designed for active/active resilience, replay, and low-latency performance in always-on markets.

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4OTC – Building ultra-low-latency FX & digital asset connectivity services with Aeron Transport using IPC and SBE

Mark Price explains how 4OTC uses Aeron Transport, IPC, and SBE in its 1API stack to deliver scalable, modular, ultra-low-latency connectivity with extreme throughput, low tail latency, and continuous delivery for always-on FX and digital asset markets.

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Capital markets infrastructure: The end of the trade-off between performance and resilience

How leaders in exchanges, banks, and trading firms are modernizing infrastructure to achieve resilience, consistency, high availability, and regulatory readiness without sacrificing performance.

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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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