Event Streams Release Notes for May 2026

Platform Release

May 30 2026

New

We added these features

• Added a new Dynamic Topic Routing rules functionality, that filters messages between topics directly in Event Streams, without writing custom code or building a separate integration process. From the new Routes tab inside an environment, you can:
  • Create routes that read from an input topic and forward messages to one or more output topics based on filter conditions you define on message properties.
  • Add multiple filter groups per route, each with its own output topic, plus a mandatory unfiltered output topic so no messages are lost when nothing matches.
  • Start, pause, and delete routes from the Routes table, with confirmation dialogs to prevent accidental changes. Routes must be paused before they can be edited or deleted.
  • Edit existing routes and conditions inline from the Routes table.
  • Search routes by name, input topic, or output topic, and sort or paginate the table for easier management.
  • Non-admin users can view and inspect routes in read-only mode, while only admins can create, edit, or delete them.
    (ES-1922) For more information on this feature, refer to Dynamic topic routing

Fix

We fixed these issues

• The Pulsar client was updated to 3.3.9 to correct an issue causing FeatureNotSupportedException warnings. With this update, the warning no longer appears in ExecutionWorker logs. (ES-4078)