One of the funny little things that SolidWorks used to do is that when one added a center mark to a hole (or set of holes) that are already dimensioned, it would not adjust the dimension extension lines to fit with the center mark.
In the march to quality improvements, SolidWorks has fixed this little oversight. Now, when one adds a center mark to a previously dimensioned hole, a gap appears between the center mark and the dimension’s extension line. The same is also true if one adds a dimension to a hole that already has a center mark. No more dragging extension lines after the fact.
Here’s the sample image from the What’s New file: