Bean Validation 2.0 Specification
Bean Validation 2.0 focused on the following topics:
support for validating container elements by annotating type arguments of parameterized types e.g.
List<@Positive Integer> positiveNumbers. This also includes:
more flexible cascaded validation of container types
support for the property types declared by JavaFX
support for custom container types
support for the new date/time data types (JSR 310) for
new built-in constraints:
leverage the JDK 8 new features (built-in constraints are marked repeatable, parameter names are retrieved via reflection)
You can consult an HTML diff between the 1.1 specification and the 2.0 specification here.
For more information, check out the full list of changes.
If you are interested in the various drafts that led to Bean Validation 2.0, check out the history page.