I'm not completely sure, but I think the history of the stats through skills mod was:

Stats through skills I - Stats increase linearly proportional to your skill levels. Due to lua limitations or something, your starting stats would be fixed at 8 8 8 8, which meant that putting points into stats at chargen was useless. It was better off putting the points into skills instead

Stats through skills II - Same as stats through skills I, but someone found linear increase OP (it was pretty OP), so this one had logarithmic increase. eg. need 2 skill to go up 1, 4 skill for the next stat increase, etc. I don't recall the actual curve. Still had the same limitations as V1

Stats through skills III - Linear increase, but works with chargen stat changes. The key was checking skills every midnight and applying a buff, instead of directly setting the stats.

Stats through skills IV - Logarithmic increase, allows chargen stat changes.

I think the default version that comes with the game is IV, but I'm not sure.