Eigen 3.1.1 released!
Eigen 3.1.1 has been released on July 22, 2012.
The source archive is at: https://gitlab.com/libeigen/eigen/-/archive/3.1.1/eigen-3.1.1.tar.bz2
This is a maintenance release with various bug and warning fixes. It is particularly important as the first release under the MPL2 license.