Their list of new Features:
- New in Bryce 6.0! - Image Based Lighting via HDRI
- New in Bryce 6.0! - Animation Import via DAZ|Studio
- New in Bryce 6.0! - Mesh Export of Booleans
- New in Bryce 6.0! - Image-Based Brushes within the Terrain Editor
- New in Bryce 6.0! - 16-Bit Greyscale Image Import within the Terrain Editor
- New in Bryce 6.0! - Random Replicate Tool
- New in Bryce 6.0! - Support for Dual-Processors and Hyperthreading
- New in Bryce 6.0! - Compressed File format
- New in Bryce 6.0! - Custom Image Textures on the Moon
- New in Bryce 6.0! - Improved Preset Managers
- New in Bryce 6.0! - Mouse-Over Tool Tips
- Updated Documentation
- DAZ|Studio 1.3.1.0
They are also saying that rendering is up to 30% faster.