DiagramLite 1.7 adds the following new features:

Clipboard support
A single diagram item or a selection of items can be copied or cut to the Windows clipboard. This is done programmatically using the CopyToClipboard and CutToClipboard methods. To paste the clipboard contents into the current diagram, call PasteFromClipboard. Clipboard support was introduced with version 4 of Silverlight, so these methods are not available in the Silverlight 3 build of the control.

Node rotation
Shape nodes can be rotated at an arbitrary angle. The RotationAngle property can be used to get or set the current rotation angle in code. Nodes can also be rotated interactively if the Rotate flag in EnabledHandles is set. That flag displays a round adjustment handle above the node which sets the rotation angle when dragged.

Miscellaneous
~ The expand/collapse button displayed beside Expandable nodes can be customized using the ExpandButtonTemplate property.
~ The AutoScroll property enabled automatic scrolling when the mouse is dragged near the diagram edges.
~ The TransformDiagramToItem and TransformItemToDiagram methods transform points between item's and diagram's coordinates.

If anyone is interested in trying out the beta, please download it here:
https://mindfusion.eu/_beta/DiagramLite_1.7.zip

The archive includes updated assembly and help files for v1.7.

Thanks,
Stoyan