Sorry Folks, There Will be no DirectX 12 Support For Windows 7
Microsoft's latest DirectX API will be exclusive to Windows 8 and Windows 10.
Update: According to a statement received by GameSpot [http://www.gamespot.com/articles/amd-misspoke-saying-directx-12-won-t-work-with-win/1100-6423617/], Huddy "misspoke" regarding DirectX 12 support for Windows 7.
"There have been reports based on a video of Richard Huddy of AMD making speculative comments around DirectX 12 support on versions of Windows," AMD said in the statement. "Richard Huddy does not speak for Microsoft, and he was unfortunately speculating from Microsoft's publication of key dates and milestones for Windows 7 lifecycle and mainstream support policy. Richard has no special insight into Microsoft's Windows or DirectX roadmaps. Microsoft is a key, strategic partner for AMD and we're continuously collaborating with them on DirectX 12."
So, even though it's just speculation, we probably won't be too surprised if this one turns out to be true, given Microsoft's history.
Source: GameSpot [http://www.gamespot.com/articles/amd-misspoke-saying-directx-12-won-t-work-with-win/1100-6423617/]