Significant changes include:
- Stereoscopic camera, including stereo+spherical for Oculus Rift, etc.
- Fisheye lens option
- New Glass Shader
- "Taper top and base" parameter on Cloud Layer V2
- New function nodes
- Geog (GIS) data handling improvements, including multi-file load
- Node palette search functionality
- Lots of bug fixes and optimizations, including improved render quality in certain situations, faster voronoi calculation, etc.
For more info: http://planetside.co.uk/32-released