- Added option to bypass default groups. If more groups are specified in the nodes than there are in the groups, loop over supplied groups instead of default.
- Added two new static smooth curves modes: curveCW and curve CCW.
- Added request redraw for certain internal processes to reduce number of draw calls.

- Added fontSizeMin, fontSizeMax, fontSizeMaxVisible, scaleFontWithValue, fontDrawThreshold to Nodes.
- Added fade in of labels (on nodes) near the fontDrawThreshold.
- Added nodes option to zoomExtent to zoom in on specific set of nodes.
- Added stabilizationIterationsDone event which fires at the end of the internal stabilization run. Does not imply that the network is stabilized.
- Added setFreezeSimulation method.
- Added clusterByZoom option and increaseClusterLevel and decreaseClusterLevel methods.

Still clustering bug and need more documentation on new features

- Fixed issue #564 by resetting state to initial when no callback is performed in the return function.

- Improved physics handling for smoother network simulation.

see https://github.com/almende/vis/issues/511

- Better cleanup after reconnecting edges in manipulation mode

fixed cluster sector scaling
fixed cluster font scaling

- Worked around hammer.js bug with multiple release listeners.
- Improved cleaning up after manipulation toolbar.
- Added getPositions() method to get the position of all nodes.
- Added getCenterCoordinates() method to get the x and y position in canvas space of the center of the view.

- Added animation to zoomExtent navigation button.
- Improved cleaning of Hammer.js bindings.

- Added new event that fires when the animation is finished.
- Added new example showing the new features of animation.