[Kyzentun]

Honestly, I used 3.9 for about a month in 2007, then moved to SM4 CVS, then updated every year or so from then on. So I have no idea what people are attached to in 3.95 or what special stuff it had.
If it stretches backgrounds and there's no way to change it, well, that's part of the price people using it have to pay for staying 10 years behind.

Personally, I play stepmania full screen, 1920x1200 (16:10), so technically larger graphics would look better for the size I play at.