Tom
01/08/2026, 4:29 PM4.0.0-beta.25 is out, with the main addition being websocket support!
This also lays the foundation for other message/async mocking protocols and we’re planning to follow up shortly with server-sent events and more flexible webhooks, plus eventually extending it to support gRPC streaming properly.
Check out the new docs for websockets here: https://wiremock.org/docs/websockets/