Changes 2.10.1:
* The PCRE library has been updated to version 8.00.
* R CMD INSTALL has new options --no-R, --no-libs, --no-data,
  --no-help, --no-demo, --no-exec, and --no-inst to suppress
  installation of the specified part of the package.
* The documented line-length limit of 4095 bytes when reading
  from the console now also applies also to parse(file="")
  (which previously had a limit of around 1024 bytes).
* A Bioconductor mirror can be set for use by setRepositories()
  via the option "BioC_mirror".
* Double-clicking in a tk_select.list() list box now selects the item
  and closes the list box (as happens on the Windows select.list() widget).
* configure will be able to find a usable libtiff in some rare
  circumstances where it did not previously (where libtiff
  needed to be linked explicitly against -ljpeg).
* Making refman.pdf works around a problem with the indexing
  with hyperref 6.79d and later.
* The 'extended' argument is deprecated in strsplit(), grep(),
  grepl(), sub(), gsub(), regexpr() and gregexpr() (not just the
  value extended = FALSE) and will be removed in R 2.11.0.
* bug fixes

(adam)