This blog is updated daily.
A general description is here.
‘X11(type = "cairo")’ (and other devices such as ‘png’ using cairographics) and which use Pango font selection now work around a bug in Pango when very small fonts (those with sizes between 0 and 1 in Pango's internal units) are requested. (PR#14369)
Workaround font problem with ‘X11(type = "cairo")’ and similar on Mac OS X whereby italic and bold styles were interchanged. (PR13463 amongst many other reports.)
The self-starting model ‘NLSstClosestX’ failed if some deviation was exactly zero. (PR#14384)