As of Version 7.0, BarChart3D is part of the built-in Mathematica kernel.
As of Version 7.0, BarSpacing is part of the built-in Mathematica kernel.
BarEdges
(Obsolete Bar Charts Package Symbol) As of Version 7.0, BarEdges has been superseded by ChartStyle.
As of Version 7.0, BarEdgeStyle has been superseded by ChartStyle.
As of Version 7.0, GeneralizedBarChart3D has been superseded by RectangleChart3D.
BarChart
(Obsolete Bar Charts Package Symbol) As of Version 7.0, BarChart is part of the built-in Mathematica kernel.