All I did was make ladders 3D. Mostly just as a test.

This pack (and almost every single other resource pack) should work with almost any Minecraft version.

Though you can use other resource packs with it, they may not work, as this is a 3D version of the Vanilla ladder texture. So they'll only work if their ladder texture is the exact same shape/size as the Vanilla one.
(Granted, the model will still take effect, but chances are it'll be pretty darn wacky looking).