We have released version 1.4 of DiagramLite. It contains the following new features:

TreeView nodes
The TreeViewNode class represents nodes that can display hierarchical data. The root items displayed in the node can be accessed through the RootItems property. New items can be added to and removed from the returned collection. The root items can have child items on their own and so on. For more information, refer to the TreeViewItem class.

Link auto-snapping
Now links can automatically connect to the nearest diagram node without the mouse pointer reaching the node. This is enabled by setting the AutoSnapLinks property. The maximum distance at which auto-snap works can be specified through AutoSnapDistance.

Miscellaneous
~ GetLinkAt returns a DiagramLink located at the specified point
~ GetNearestNode returns the node nearest to the specified point
~ InplaceEditCancelOnEsc property added
~ Granularity and TurnCost properties added to QuickRouter
~ HyperLink property added to DiagramItem
~ keep specified nodes' position but consider their repulsion on others in SpringLayout
~ SplitGraph property added to SpringLayout
~ a new CenteredCircle style added to the ArrowHead enumeration

Registered customers with an active upgrade subscription can download the licensed version from the clients area on our site.
     
A trial version is available for download here: 
https://www.mindfusion.eu/DiagramLiteTrial.zip ;  

Enjoy!