In Blender 2.79, it was possible to apply "Smooth" from the mesh context menu in vertex, edge and face mode.
For Blender 2.79
However, in the recently released Beta for 2.8, this option was removed for edges and faces.
For Blender 2.8:
Sometimes I want to smooth not single vertices, but larger areas. The only workaround I can come up with at this point is to select faces in Face mode and then change to Vertex mode before smoothing.
The Smooth option in the context menu was extremely convenient in Blender 2.79 and I don't really know why the developers would remove this functionality when it worked perfectly. Has it maybe been relocated to another menu?