The new version (Java Server Bundle and Client Layout Extension) brings a new layout algorithm for radial layout that places nodes in a concentrical fashion, and the new series-parallel layout algorithm that is designed to handle two-terminal graphs.
The Balloon style tree layout algorithm brings new placement options and new integrated node labeling support. The tree layout algorithm provides new multi-parent support to handle local non-tree structures, and the hierarchical layout style brings new grid placement support for nodes and edges.
Also new is functionality to abort lengthy calculations of automatic layout algorithms.
