hi lars.ulu, welcome to Moi
The changes are here: http://moi3d.com/wiki/V3Beta
Michael's philosophy on Moi software design is fitting new features and changes into the existing structure first so the differences don't normally stand out in a glaring manner. Look for additional control and input to existing commands first to determine differences. If you watch the status prompts and dialogs you will see that there are new functions and behaviors that fit comfortably in with the old ones.