As of Version 8.0, MultiPoissonDistribution has been renamed to MultivariatePoissonDistribution and is part of the built-in Mathematica kernel.
As of Version 8, NegativeMultinomialDistribution is part of the built-in Mathematica kernel.
As of Version 7.0, NonlinearRegress has been superseded by NonlinearModelFit and is part of the built-in Mathematica kernel.
As of Version 7.0, PieEdgeStyle has been superseded by ChartStyle.
As of Version 7.0, PieExploded has been superseded by SectorSpacing.
As of Version 7.0, PieOrientation has been superseded by SectorOrigin.
As of Version 7.0, AdjustedRSquared has become a property of LinearModelFit.
ANOVATable
(Obsolete Regression Common Package Symbol) As of Version 7.0, ANOVATable has become a property of LinearModelFit and NonlinearModelFit.