The Fantastic 4

As usual I'm late with this, but better later than never :)

After almost an year worth of planning, developing, bug fixing and testing, WSO2 ESB 4.0 is finally out. This is the first WSO2 ESB release for year 2011 and follows the 3.0.1 release which went out in September 2010. WSO2 ESB 4.0 comes with an array of new features targeting enterprise users:

• Message stores and processors (for implementing advanced QoS levels such as in-order delivery and exactly once delivery)
• Concept of functions for the ESB configuration language (define sequences and endpoints as parameterized reusable entities)
• Deployment synchronizer (easily synchronize clusters of ESB nodes via the registry)
• Built-in Qpid broker (can be used as a JMS provider or an event broker for pub-sub messaging)
• LDAP based user store powered by Apache DS
• HTTP relay transport (a new non-blocking HTTP transport that supports pure streaming)

In addition you will find the following new mediators in this release:

• URL rewrite mediator (rewrite and modify URL strings)
• Event mediator (fire events to predefined topics)
• Conditional router mediator (implement complex routing scenarios and rules easily)

Apart from these improvements, our UI gurus have given a complete make over to the ESB management console with collapsible menus, improved input validation, and new styling. You will also find that many of the recurring bugs in the 3.x series have been fixed in this latest release.

If you are looking for a high performance, user friendly solution for enterprise integration, then WSO2 ESB is for you. It's completely free and open source under the ASL 2.0. Download today and let us know how it goes. You can get in touch with us over mail, forums and issue tracker.