Getting started Community Training Tutorials Documentation APIs, AI & Tools
4.2.2 and later
Support Category: Select
Anypoint Connector for WebSockets (WebSockets Connector) establishes bidirectional and full-duplex communication between a server and client, implements server push notifications, works with the HTTP infrastructure, and removes the need for clients to regularly poll the server for new data.
Guide: WebSockets Connector
Reference: WebSockets Connector Reference
August 17, 2026
This connector version requires Mule runtime 4.6.22 or later if you’re using Mule 4.6.x, or Mule runtime 4.9.9 or later if you’re using Mule 4.9.x. If you prefer not to upgrade your Mule runtime, use the connector version released immediately after this one.
| App/Service | Version |
|---|---|
Mule |
4.2.2 and later |
OpenJDK |
8, 11, and 17 |
June 27, 2026
| App/Service | Version |
|---|---|
Mule |
4.2.2 and later |
OpenJDK |
8, 11, and 17 |
| Issue Resolution | ID |
|---|---|
The Open Outbound Socket operation now correctly closes the previous connection and retains the new connection when reconnecting with the same socket ID. |
W-19389824 |
WebSockets Connector now uses the retry support from |
W-19290853 |
March 26, 2025
| App/Service | Version |
|---|---|
Mule |
4.2.2 and later |
OpenJDK |
8, 11, and 17 |
| Issue Resolution | ID |
|---|---|
WebSockets Connector now closes duplicate connections when trying to use the same socket ID. |
W-17502656 |
January 8, 2024
This connector is now compatible with Java 17.
| App/Service | Version |
|---|---|
Mule |
4.2.2 and later |
Open JDK |
8, 11, and 17 |