The mouse wheel now zooms the view about the mouse pointer. This reduces the need to pan after zoom.
Left and Right Shift modifiers control now different things. Left Shift + dragging with the Right Mouse Button zooms in / out. Right Shift + Right Mouse Button controls the distance (moves the camera closer to or away from the current aimpoint).
Basic 3DConnexion™ 3D-mouse support added for view navigation control. The View Control group in the Environment/Customization/Available Objects window contains four new tools for enabling panning, zooming and rotation effects on View windows.
Note that this toolset is loaded and available only when a 3D mouse device is plugged in.