"240H" – unlocking new heroes and improving existing ones.

Here is the latest version of the mod. All errors have been fixed, and unnecessary elements have been removed. I've been playing with it myself, and I recommend it to you.
https://yadi.sk/d/HI2J2J3X3Lt7Ce

Could new versions be assigned a number or something else? I've already downloaded three archives of the mod, and it's not immediately clear which one is the newest.
The new version is 10 times smaller than the old one. What exactly was removed?