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A general description is here.
Because of a typo, 'pointsize' in png(type="cairo") etc devices was being interpreted in pixels not bigpoints.
Rgui now accepts Unicode characters invalid in the locale when pasted in and converts them to \uxxxx sequences before passing to R.
The Save as | Postscript ... file selection box now offers *.eps (default) and *.ps file selections.
Rgui now accepts Unicode characters invalid in the locale when
pasted in and converts them to \uxxxx sequences before passing
to R.