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A general description is here.
‘untar()’ has a new argument ‘restore_times’ which if false (not the default) discards the times in the tarball. This is useful if they are incorrect (some tarballs submitted to CRAN have times in a local timezone or many years in the past even though the standard required them to be in UTC).
The long-deprecated ‘intensities’ component is no longer returned by ‘hist()’.
‘mean()’ for data frame and ‘sd()’ for data frames and matrices are defunct.
The deprecated ‘intensities’ component returned by ‘hist()’ is no longer recognized by the ‘plot()’ method and will be removed in R 3.0.0.