You can now opt for duplicate found features to be automatically deleted. You check Options menu ► Preferences ► Delete Duplicate Features. The duplicates are placed in the Features Window Bin, so you can reverse the deletion if necessary.
Duplicates occur, for example:
Where parallel CPLs have been imported from CAD models. Previously a copy of the feature would be found in each CPL. Now all the features apart from the one in the highest CPL are deleted.
Where vertical and radial holes are coincident. The vertical hole will be deleted. (Below the purple hole feature is radial around the X axis, and this has been kept, while the vertical hole at the same place (green) has been deleted.)