This blog is updated daily..
A general description is here.
On systems using ICU for collation (including Mac OS X), using
Sys.setlocale() to change the LC_COLLATE setting is more
likely to change the collation provided by ICU.
R CMD Rd2pdf is available as a shortcut for R CMD Rd2dvi --pdf.
A new dynamic help system may be started using tools::startDynamicHelp(). With this option, HTML help pages will be generated on request, resolving links by searching through all installed packages.
R CMD Rd2txt is defunct: use R CMD Rdconv -t txt or tools::Rd2txt().
A system 'glob' function is now essential (a working Sys.glob() has been assumed since R 2.9.0 at least).
On systems using ICU for collation (including Mac OS X), using Sys.setlocale() to change the LC_COLLATE setting is more likely to change the collation provided by ICU.
R CMD Rd2txt is deprecated, and will be removed in 2.10.0. . (It is just a wrapper for R CMD Rdconv -t txt.)