Amazon EventBridge relaunches event buses with a new enhanced Custom event bus that lets you build event-driven applications that decouple teams and can scale with your organization. Create a custom event bus, share it across accounts, and now teams can publish and consume events with strict ordering, open event formats, built-in retention, and support for advanced event transformations. The EventBridge Custom event bus is a serverless event broker that enables you to create scalable event-driven applications by routing events between your applications, SaaS integrations, and AWS services.