The Creative Assembly has a patch for Total War: Shogun 2 going live on Monday, and just in case it slipped your mind, we’d like to remind you about it. Now that we have done our duty in that respect, you should also know it contains DirectX 11 support and other goodies.
Other patch additions related to DX11 include: advanced shadows, support for MSAA 2x,4x,8x, enhanced depth of field, and tessellation support.
There are also quote a few bugs fixes as well as the addition of the free maps Aki, Flood plains, Hida mountain, and Sanriku Ria.
Get the full release notes through the official forums.