Up to 12 now might have to get a new Video Card.
http://www.neowin.net/news/microsoft-reveals-directx-12-for-pc-xbox-one-and-mobile
http://www.neowin.net/news/microsoft-reveals-directx-12-for-pc-xbox-one-and-mobile
Microsoft wants DirectX 12 to exist as a "console-like" API, making it easier for developers to work with higher consistency and predictability. Direct3D 12 will apparently spread performance across multiple cores, lowering overall strain on hardware, and creating an environment where your rig--or PC rig--will have more headroom for running high-end graphics. Microsoft says 40 percent of all DirectX 11 hardware will be ready for DirectX 12 on day one.