LandXML 1.1 support?

Evaluating Carlson Hydrology for use with Civil 3D 2007: LandXML files
from C3D 2007 are in LandXML 1.1 format, which is not supported by Carlson
Import LANDXML command. When will this be supported?
from C3D 2007 are in LandXML 1.1 format, which is not supported by Carlson
Import LANDXML command. When will this be supported?