The first maintenance release of Mule 2.1 includes some minor improvements to Property Placeholder syntax, Retry Policies, JNDI lookup of JMS queues/topics, as well as some other bug fixes. For more information, see the Release Notes

This release includes support for component interceptors, an upgrade to CXF 2.1.1 for web services, improvements to routers, JMX, transactions, and cleaner shutdown. Various improvements have been made to Mule's configuration schemas, more and more documentation has been updated and created for 2.x, and as always, many bug fixes and increased test coverage. For more complete information, see the Release Notes.