Snippet from article:

"Last November, Blizzard quietly announced the creation of a classic games division with the intent of bringing its original core game titles, including StarCraft, Warcraft III and Diablo II up to speed with modern computer systems. Diablo II got its recent patch 16 years after its release, and now Warcraft III is getting the same treatment 14 years after its debut.

Patch 1.27a improves compatibility for Warcraft III in Windows 7, 8.1 and 10 in addition to adding a new installer for Mac 10.10 and 10.11. To put it into perspective, the game debuted with compatibility for Windows 98, ME (shudder), 2000 and XP. Those operating systems are long gone, save the declining population of users clinging to unsupported software and hardware, likely so they can play their favorite classic PC games. Blizzard says now you don’t have to, because Warcraft III lives on."

-tomshardware.com/news/blizzard-patches-warcraft-3-reign-of-chaos-1-27a,31428.html