Saurus2 is downward compatible with Saurus1. It is not necessary to have Saurus1 installed in parallel with Saurus2. You don't have to care about anything, since your old mixes will still work very well and have an enhanced sound. We took big effort to keep everything compatible.
For the possible case that you don't like the enhancements introduced by Saurus2 you can configure it to sound like Saurus1:
1 ) Load your song and open Saurus2
2 ) Click on 'Config'
3 ) Set 'Drift depth' to 'light drift'
4 ) Set 'Noisyness' to 'no noise'
5 ) Set 'Saturation' to 'linear'
6 ) Set 'EQ low cut' to 'Low cut off'
7 ) Set 'EQ high cut' to 'High cut off'
8 ) Save your song
