The button to return to the diagram using a decision logic that was available from the DMN ribbon is now also available in the bottom right of the screen on decision logic pages (in the location where the zoom control are for a diagram).
A search bar is now available in the Data Types dialog.
Data Types import from an XSD improvements:
XSD complex types are now imported.
XSD complex types reused in element and complex type will now yield a Data Type reuse instead of a copy of the type.