Speaking of incompatible saves between versions...Please read before downloading or replying to thread.
NTR is fully avoidable in new release of version 2.0, and there is currently no hardcore content present as of yet.
BILH Version 2.0-3.0 is a completely new game, with a completely new story. Therefore, there are no possible saves that will work with this version of the game, so a new game is required of course.
How do you separate the saves if you have both games installed?
As it stands, if you have two versions of a game then you see all the saves from both versions when you open any version of the game. How does one version of a game have access to another version's saves? Is there some folder where they are co-located? A persistent folder somewhere for Ren'py?