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A general description is here.
There is support for cairographics-based devices using the same code as on Unix-alikes. This can be selected by the ‘type’ option to the bitmap devices ‘bmp()’, ‘jpeg()’, ‘png()’ and ‘tiff()’. New devices ‘svg()’, ‘cairo_pdf()’ and ‘cairo_ps()’ are available.
[Experimental and not compiled in by default (and not all devices work correctly).
To make use of them, ‘cd src/library/grDevices/cairo’ and read the instructions in ‘Makefile.win’.]
‘file.info()’ now accepts ‘file’ names with trailing directory separators.