Is BSEC 2.0 compatible with BME680? What are the new features of 2.0 vs 1?

Hi,

Maybe I just missed this but I have search across the Bosch website. Two questions:

1. Is the new BSEC 2.0 compatible with the BME680, or only the BME688?
2. What are the main new features of 2.0 vs 1? 

We hope to eventually switch to the BME688, but for now we have a bunch of product with the BME680. Just trying to figure out pros and cons.

Any links or information anyone has would be very helpful.

-Nick