The major new features in v2.0 are:
- Spectrogram editor.
- Play mode (Poly, Mono, Legato).
- Rewritten engine with higher quality and stability.
- Improved morphing (with seamless looping modulatable points and time-stretch).
- Formant filter.
- Panning position for each partial.
- Morph envelope.
- Redesigned left layout.
- Ultra heavy CPU optimization (250% faster than Vertigo 1.x).
You can find out more and take the beta for a spin in this thread in their support forum here at K-v-R.