Hibernate4.0 Version New Features:

Ø  Provide support for initial multi-tenancy databases.

Ø  Introduces a ServiceRegistry.

Ø  Redesign SessionFactory Building.

Ø  Clean up of Session opening from SessionFactory.

Ø  Using org.hibernate.integrator.spi.Integrator made integration and auto discovery more desirable.

Ø  Improve to work (Better logging) with i18n and message codes.

Ø  Clean up of deprecated interfaces, methods, etc.

Ø  Preparation for OSGI support
Ø  Jdk1.6 (jdbc4) as baseline.