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A general description is here.
‘source()’ and ‘example()’ have a new optional argument ‘catch.aborts’ which allows continued evaluation of the R code after an error.
The non-Quartz ‘tiff()’ devices allow additional types of compression if supported by the platform's ‘libtiff’ library.
When checking Rd files, ‘R CMD check --as-cran’ now notes some of the “lost braces” that ‘tools::checkRd()’ finds. Typical problems are Rd macros missing the initial backslash (e.g., ‘code{...}’), in-text set notation (e.g., ‘{1, 2}’, where the braces need escaping), and \itemize lists with _description_-like entries of the form \item{label}{description}.
‘tiff(type = "Xlib")’ was only outputting the last page of multi-page plots.