Knowledgebase : Assembly- Whats New 2014
SLOT MATES: SolidWorks 2014 introduces a new mate, called a slot mate. You can mate bolts to straight or arced slots and you can mate slots to slots. You can select an axis, cylindrical face, or a slot to create slot mates.
SPHERICAL MATES: You can create mates using spherical bodies and surfaces. You can create mates between elliptical, conical, and parabolic edges, sketch entities, and other geometry that are related as follows: