Event Streams Release Notes for May 2026

Platform Release

May 30 2026

Event Streams features and fixes are not in the Runtime release, unless otherwise stated.

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)

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)
  

This fix is in the runtime release.