The releases of CppAD for 2012 can now be downloaded at
http://www.coin-or.org/download/source/CppAD/cppad-20120101.<release>.<license>.tgz
where <release> is the release number and <license> is gpl or cpl.
The user API for these releases is fixed at the date 2012-01-01. The
releases correspond to bug fixes (or speed improvements).