When creating Conic Sketch Elements (added in SolidWorks 2013) users of SolidWorks 2014 now have the option to choose to automatically add Tangency Sketch Relationships to adjacent Sketch Geometry when the Conic is created. This subtle change will save users several steps in the process when this is the desired effect. Compared 8 picks on screen the process now only take 2, when creating tangency on both ends of the Conic.
Also, this option eliminates accidentally forgetting to add these sketch relationship leading to an under-defined sketch.