Wow! I think I first used this wm 25 years ago and they are still not even close to 1.0. Does anyone know what version number scheme they are using? Is it actua

Wow! I think I first used this wm 25 years ago and they are still not even close to 1.0. Does anyone know what version number scheme they are using? Is it actually +0.01 per year, or is that just a happy coincidence?