As of Version 7.0, BestFitParameterDelta has been renamed to "BetaDifferences" and has become a property of LinearModelFit.
As of Version 7.0, BestFitParameters has become a property of LinearModelFit and NonlinearModelFit.
CookD
(Obsolete Regression Common Package Symbol) As of Version 7.0, CookD has been renamed to "CookDistances" and has become a property of LinearModelFit.
As of Version 7.0, CovarianceMatrixDetRatio has been renamed to "CovarianceRatios" and has become a property of LinearModelFit.
As of Version 7.0, JackknifedVariance has been renamed to "SingleDeletionVariances" and has become a property of LinearModelFit.
As of Version 7.0, PredictedResponseDelta has been renamed to "FitDifferences" and has become a property of LinearModelFit.
As of Version 7.0, RegressionReportValues has been superseded by LinearModelFit[...]["Properties"] and NonlinearModelFit[...]["Properties"].
As of Version 7.0, StandardizedResiduals has become a property of LinearModelFit and NonlinearModelFit.
As of Version 7.0, StudentizedResiduals has become a property of LinearModelFit.
As of Version 7.0, VarianceInflation has been renamed to "VarianceInflationFactors" and has become a property of LinearModelFit.