The company's Daniel Moth (and supporting documentation) states that DirectX 11.1 is exclusive "for all practical purposes" to Windows 8-based platforms, including Windows RT and Windows Server 2012 -- you can't leap forward in media support without a full-on OS switch. None of the changes are large enough to trigger any immediate envy outside of the occasional fan of 3D glasses, but they could pose problems for conservative gamers in the long run if games and other visually intensive titles start demanding 11.1 as a baseline.
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