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The internal method for ‘untar()’ does a better job of unravelling symbolic links in the tarball (but still with many limitations).
The ‘"Date"’ and ‘"POSIXt"’ methods for ‘seq()’ could overshoot when ‘to’ was supplied and ‘by’ was specified in months or years.
The internal method of ‘untar()’ now restores hard links as file copies rather than symbolic links (which did not work for cross-directory links).