I have updated my TexLive distribution from 2010 to 2011. But when I run
pdflatex it still uses the older 2010 version. How can I change this? Also when I use
tex --v it only shows the old version: TeX 3.1415926 (TeX Live 2010).
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On the mac, you need to go the menu Apple > Pref System > Distribution TeX and the you can make a choice between TeXlive 2010 or TeXLive 2011.
You can verify your installation : in the finder go to folder (shift apple G) then /usr/local/texlive/ you can see 2010 and 2011.
You verify your Path with in the terminal $echo $PATH.
For me : /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/texbin
You can also verify if