The legitimate version has received patches improving compatibility with Windows 10/11, fixing graphics glitches, and addressing memory leaks. Cracked releases are frozen in time—typically version 1.21 or 1.26, missing over a decade of improvements.
The specific version you mentioned often refers to legacy "cracked" installers from scene groups. Warcraft III Reign Of Chaos Skidrow Reloaded
Warcraft III: Reign of Chaos is set four years after the events of Warcraft II: Tides of Darkness. The game follows the story of the Burning Legion's invasion of Azeroth and the subsequent alliance between humans, orcs, and night elves to defeat the threat. Players can choose from four playable factions: Humans, Orcs, Night Elves, and Undead. fixing graphics glitches
Here's a detailed story about the game: