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In this release, we add two new components -- Zend_Queue and Zend_Test_PHPUnit_Db -- as well as additions to existing components -- Zend_Ldap, Zend_Rest_Route, and Zend_Db_Adapter_Sqlsrv -- that target such development. Zend_Queue provides a common API for interacting with queue services such as Apache's ActiveMQ, MemcacheQ, and Zend Platform's Job Queue. Zend_Test_PHPUnit_Db brings DBUnit support to our Zend_Test offering, and provides integration with Zend_Db. Our Zend_Ldap support is now much more robust, and allows connectivity with MS ActiveDirectory and Novell's eDirectory, as well as full CRUD and tree manipulation options. Zend_Rest_Route allows developers to quickly develop RESTful MVC applications, which are increasingly gaining traction when serving public APIs. Zend_Db_Adapter_Sqlsrv interfaces with Microsoft's SQL Server driver for PHP.
http://devzone.zend.com/article/4906-Zend-Framework-1.9.0-Released