Improves stability when importing IFC data which contains special characters.
Improves stability and performance when using visualization features like Sky, Exposure, and Anti-Aliasing.
Improves stability when rendering views.
Improves stability when using manual exposure in Raytrace mode.
Disables Sun and SunPath from being rendered in Raytrace mode.
Improves printing consistency when tone mapping is enabled.
Improves Surface Transparency override by element for multiple selection.
Improves Raytrace mode rendering output.
Improves stability when using Raytrace mode with Hardware Acceleration disabled.
Allows Raytrace mode to work with DirectX 9.
Improves export consistency of Space and Zone elements when multiple elements have the same name and number.
Improves stability while browsing to Revit Server when there is no network connectivity.
Improves stability when Fixed Distance option for a divided path.
Improves stability when setting a Design Option as the Primary.
Improves performance of opening and closing sketch mode in projects with many families.
Allows exporting of materials painted on elements to ODBC.
Corrects display of solid filled regions with transparent backgrounds.
Improves stability during Copy/Paste operations.
Improves stability when opening projects from previous versions of Revit.
In addition, the following enhancements have been made to Revit Platform 2013:
Improves railing representation in coarse view.
Improves stability when support type is not defined for stair.
Improves performance when many railings exist within a project.
Improves stability when editing winder stairs.
Improves creation of U-shaped winder stairs.
Improves stability when closing a sketch editor, such as slab, site, etc., which create a large number of points.
As noted in the Enhancements Documentation, the following improvements have been made to Revit Architecture 2013: Update Release 1 for Autodesk ® Revit ® Architecture 2013 is now available.