提醒一下，在http://www.r-project.org/下载。感觉没有什么大的改变。不过有些朋友喜欢用最新版的，可以试一下。
下面是一些重要更新，不过好像平时都用不太着。还有其他很多小的细节更新，有兴趣的可以自己去看。


SIGNIFICANT USER-VISIBLE CHANGES

• All packages must have a namespace, and one is created on installation if not supplied in the sources. This means that any package without a namespace must be re-installed under this version of R (but previously-installed data-only packages without R code can still be used).
  
• The yLineBias of the X11() and windows() families of devices has been changed from 0.1 to 0.2: this changes slightly the vertical positioning of text in the margins (including axis annotations). This is mainly for consistency with other devices such as quartz() and pdf(). (Wish of PR#14538.)
  There is a new graphics parameter "ylbias" which allows the y-line bias of the graphics device to be tweaked, including to reproduce output from earlier versions of R.
  
• Labeling of the p-values in various anova tables has been rationalized to be either "Pr(>F)" or "Pr(>Chi)" (i.e. the "Pr(F)", "Pr(Chi)" and "P(>|Chi|)"variants have been eliminated). Code which extracts the p value via indexing by name may need adjustment.
  
• :: can now be used for datasets made available for lazy-loading in packages with namespaces (which makes it consistent with its use for data-only packages without namespaces in earlier versions of R).
  
• There is a new package parallel.
  It incorporates (slightly revised) copies of packages multicore and snow (excluding MPI, PVM and NWS clusters). Code written to use the higher-level API functions in those packages should work unchanged (apart from changing any references to their namespaces to a reference to parallel, and links explicitly tomulticore or snow on help pages).
  It also contains support for multiple RNG streams following L'Ecuyer et al (2002), with support for both mclapply and snow clusters. This replaces functions likeclusterSetupRNG() from snow (which are not in parallel).
  The version released for R 2.14.0 contains base functionality: higher-level convenience functions are planned (and some are already available in the ‘R-devel’ version of R).
  
• Building PDF manuals (for R itself or packages, e.g. via R CMD check) by default requires the LaTeX package inconsolata: see the section on ‘Making the manuals’ in the ‘R Installation and Administration Manual’.
  
• axTicks(*, log=TRUE) has changed in some cases to satisfy the documented behavior and be consistent.