What is "jpa-2.0"

Developed as a new version of frameworks as JPA 2.0, released in December 2009 along with Java EE6 (Java Enterprise Edition). Was specified by JSR 317 (Java Specification Requests).

The API has incorporated most of the existing features into frameworks owners who were missing in version 1.0, and most of the improvements were made to meet the mapping needs of legacy systems.