The latest version of the Javadoc UML extension yWorks UML Doclet is 3.1.
UML Doclet 3.1 - Changes Since 3.0_02
Features
Added compatibility with JDK 1.8.0.
Improvements
Added new content separator policy first-word-or-tag to the XML driven taglet factory.
UML Doclet 3.0_02 - Changes Since 3.0_01
Features
Added compatibility with JDK 1.7.0.
UML Doclet 3.0_01 - Changes Since 3.0
Bugfixes
Fixed problems with improperly encoded file paths. yWorks UML Doclet now also handles file paths that contain special characters such as spaces, for example.
Addressed incorrect generation of package links in class diagrams that point to undocumented packages.
Inner types that are used in method signatures are correctly prefixed with their enclosing type's name.
Fixed BREAK_CYCLES_BY_WEIGHT_POLICY, which can be used in package dependency diagrams.