The "v20122498" era of the game has seen significant backend optimizations. Early versions of Reforged were notorious for memory leaks and frame drops, even on high-end rigs. The 2.0 build has stabilized the engine significantly, making custom games and large-scale campaign battles much smoother.
The build is a specific post-2.0 hotfix that many consider the “goldilocks” patch. It arrived just before some later updates that reintroduced minor bugs. This repack strips away the always-online requirements, the Battle.net launcher bloat, and the forced 30GB download of HD assets you might not want. warcraft iii reforged v20122498repack better