This blog is updated daily.
A general description is here.
Printing extremely long string values could overflow the stack and cause the GUI to crash. (PR#14543)
‘Sweave()’ has options to produce PNG and JPEG figures, and to use a custom function to open a graphics device (see ‘?RweaveLatex’). (Based in part on the contribution of PR#14418.)
The default for ‘Sweave()’ is to produce only PDF figures (rather than both EPS and PDF).