What is New in AutoCAD Civil 3D 2018 - Interoperability Between Versions

Hello everyone… With the introduction of a New File Format and Feature Format on Autodesk® AutoCAD® Civil 3D® 2018 Interoperability Between Versions is, as usual, a hot topic…

Here are a couple of things you need to know…
Objects in a drawing saved in AutoCAD Civil 3D 2018 are available only as proxies when the drawing is opened in a prior version of the software.

Within AutoCAD Civil 3D 2018, set the PROXYGRAPHICS drawing setting to 1 to save the graphics with the drawing, otherwise, a bounding box is displayed where the object is located when the drawing is opened in a prior version of the software.

Hope this will help!