Major new features include EJB 3.1 Singleton Support, EJB Constructor Injection, Spring Integration, and Multicast Client-Server Discovery. EAR-style classpath application discovery. System Property and InitialContext property overriding now applies to persistence-unit properties and logging levels. Special support for EclipseLink, TopLink, and Hibernate as JPA providers. Login/logout are now possible in an embedded scenario. A complete overhaul of all client/server connection management dramatically increases performance. Several new checks have been added to the Application Validation ruleset.