New function ElementData has been added to the built-in Mathematica kernel.

All the functionality in Miscellaneous`PhysicalConstants` is now available through the newly created Physical Constants Package.

All the functionality of Miscellaneous`ResonanceAbsorptionLines`is now available in the newly created Resonance Absorption Lines Package.

NonlinearRegress functionality is now available using the built-in function NonlinearModelFit.

FrobeniusInstance and FrobeniusSolve are now available as the newly added built-in Mathematica kernel function FrobeniusSolve. FrobeniusF is now available as the newly added ...

All the functionality of NumericalMath`Butcher`is now available in the newly created Numerical Differential Equation Analysis Package.

Distributions defined in this package are included in the newly created Multivariate Statistics Package. Random and RandomArray are replaced by RandomInteger. ...

Distributions defined in this package are included in the newly created Multivariate Statistics Package. Random and RandomArray are replaced by RandomReal. CovarianceMatrix ...

GeneralRationalInterpolation[{f_x, f_y}, {t, m, n}, x, {t_1, ..., t m + n + 1}]] gives the rational polynomial function of x, with numerator order m and denominator order n, ...

OrderStarPoles is an option to OrderStarPlot that specifies whether poles of an approximant and the function to be approximated should be displayed.