The greatest research skill you can have is being a nosy bitch who wants to find out.
The short history of it is that 0.7 is the last stable release of the original game. The original developer (UnrulyAction) was doing a lot of rework for the 0.8 release, to the point that the majority of the existing game content had to be cut/completely re-done. Due to IRL circumstances he had to step back from the project for his family and was not able to continue working on it. He released 0.8 as was at the time. Most of the characters aren't in it, and it is (sorry to say) filled with bugs and not very stable. He would not have been released in any other circumstances, but he had to abandon the project so he wanted to get it out there.
So as far as the original game goes, 0.7 is the "final" version. 0.8 is a "test WIP" version and it is not advised to play it.
I discovered the game a while after all of this and was initially intending only to fix the bugs and make 0.8 stable. But as I was doing that I found all the incomplete work and missing content and then learned the history of what had happened, and eventually realised it was better to re-do the entire game from scratch than try to fix it as was. After I started doing this (just for fun) I found out a lot of people wanted a stable version so I decided to share what I had done, and it got a lot more interest than I expected, so I'm now trying to add all of the 0.7 content in as well.
The version numbering on this remake is a reflection of the work on the remake, not the original. It is a brand new code-base. It currently has all of the unfinished content of 0.8 in it (as the art/sex scenes. The plot and mechanics I have followed in some places and completely redone in others). I plan to do the same for all of the characters which were in the game at the time of 0.7, and then I'm going to stop working on it as there is no more art.
