System connection/numbering is super weird in this version.
Started a new game, 1. 7.
Random Stars, 100 star limit, 50/15 for local.
I wanted to 'map' a galaxy by space master exploring all the jump points.
Firstly, I could go over 100 systems. I stopped at 101, but definitely could have gone more.
Secondly, only one exploration led back to another system, which was sol (and had an unexplored point).
Third, I noticed in a previous version that if your system theme runs out of names, it will start labeling them "System #x" where x is presumably the internal system id. (which isn't available to display easily anymore)
In 1. 7, this results in "System #0" every time except one, which was for some reason "System #-3"
I know Sol is canonically id'd as system 0, so I'm guessing that this is tied to the fixes for the other Sol related jump point connection issues.