Hi All, I am not sure why this happens, but apparently an old binary is
installed by default. Downloading and installing the new binary by hand
works fine.

Is this the intended behavior? If yes, may I ask what is the reason for it?
Thanks, Gabor

> install.packages("igraph")

  There is a binary version available (and will be installed) but the
  source version is later:
        binary source
igraph 0.6.5-2  0.7.0

trying URL '
http://cran.rstudio.com/bin/macosx/contrib/3.1/igraph_0.6.5-2.tgz'
Content type 'application/x-gzip' length 4466270 bytes (4.3 Mb)
opened URL
==================================================
downloaded 4.3 Mb


The downloaded binary packages are in
/var/folders/ws/7rmdm_cn2pd8l1c3lqyycv0c0000gn/T//RtmpJiLDYF/downloaded_packages
> sessionInfo()
R version 3.1.0 (2014-04-10)
Platform: x86_64-apple-darwin10.8.0 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] tools_3.1.0

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