Brand New JPA 2.0

Java Persistence API (JPA) 2.0, introduced with Java EE 6, adds in and specifies fully many things which were missing in JPA 1.0. Some of the features added in JPA 2.0 are advanced locking, enhanced query language, a shared cache API, expression/criteria API, property standardization, more flexible object modeling and more advanced O/R mapping support.

Java & persistence architect at Oracle, Mike Keith's presentation at Jfokus

http://www.infoq.com/presentations/whats-new-and-exciting-in-jpa-20

source: infoq