The old limit was 12 players. Patch 1.31 raised it to 24 players (12v12), enabling massive custom battles and RPG maps.
For the safest and most reliable download, always use the official Blizzard archives or a well-known community repository. Avoid "warez" sites or random file-hosting links, as they often bundle installers with malware.
Blizzard still hosts the standalone patch files on their CDN. You can download the English (US) version directly. This is the safest method as it ensures the file hasn't been tampered with.
In the context of gaming downloads, "High Quality" implies a file that is untouched, uncorrupted, and fully functional. A bad download can result in missing textures, broken cinematics, or inability to save custom maps. Ensuring you have a clean installation of Patch 1.31 guarantees that you experience the game as it was meant to be played during the peak of its classic era.
For those with a CD install (version 1.07-1.27):