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.

DirectX Developer Blog

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

DirectX 12 Makes Windows 7 Debut With Latest World of Warcraft Patch

AMD DirectX® 12 (DX12) Technology

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

DirectX12 on many Nvidia cards is outright not working. Please fix ASAP Blizzard - Bug Report - World of Warcraft Forums

DirectX 12 Ultimate To Bring Ray Tracing to the Xbox Series X, PCs, and Beyond

Valve removed Directx 7 support from Source engine games : r/lowspecgamer

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

AMD Adrenalin 2019 Edition 19.3.2 released (DX12 for Win7 and Vulkan 1.1.101 support added)

Microsoft Makes DirectX 12 Games Run on Windows 7 Easier - MiniTool

Microsoft finally ports DirectX 12 to Windows 7, but only for certain games