In my refactoring project, I ran across a pretty major bug that occurs during galaxy formation. It was actually quite easy to fix though, so I thought it would be good to update the default game as well.
This bug may have been responsible for the "Star missing from database" issue that plagued me, and players, from long ago. I never did quite get to the bottom of that one, but addressed it by writing workarounds and such.
It will only effect new games, however. You should be able to continue your current game without any trouble, as this only changes things that happen when a new galaxy is created. But players who do start a new game should have a more stable experience.