The PC version of Crysis 2 received an update recently, dubbed the Crysis 2 Ultra Upgrade, that adds full DirectX11 support. The update includes tessellation, water rendering improvements, high-quality HDR motion blur, higher quality texture formats with the optional high-res texture pack, and even more effects. To download the upgrade, simply boot up the game and go online for the auto install to initiate. A new Map Editor Pack will also be released for free this Wednesday at http://mycrysis.com.
Official Site: Crysis.EA.com