World of Warcraft uses DirectX 12 running on Windows 7 - DirectX Developer Blog

Today, with game patch 8.1.5 for World of Warcraft: Battle for Azeroth, Blizzard becomes the first game developer to use DirectX 12 for Windows 7! Now, Windows 7 WoW gamers can run the game using DirectX 12 and enjoy a framerate boost.

Variable Rate Shading Graphics Options on the Patch 10.0.7 PTR - Wowhead News

Classic Era PTR - Patch 1.14 adds DirectX 12 and Ray Traced Shadows - Wowhead News

Microsoft widens its efforts to support DirectX 12 games on Windows 7

DirectX and Parallels Desktop 13 Support

DirectX Developer Blog

World of Warcraft now supports DirectX 12, does no longer support fullscreen exclusive mode

Various] World of Warcraft Adopts DX12 but Gives up Fullscreen Exclusive Mode, Page 3

DirectStorage 1.1 Coming Soon - DirectX Developer Blog

What is direct X and what does it help in gaming? - Quora

Windows 7 Archives - gHacks Tech News

World of Warcraft is the first game to bring DirectX 12 to Windows 7