(reposting from kde-devel after suggestion that this belongs rather to this list) Hi, As you may remember, Eigen development is no longer happening in kdesupport [1]. KDE 4.3 was so far relying on the development version of Eigen, but this is no longer the case: we just released the stable Eigen 2.0.3 which has all the improvements needed for KDE 4.3 (namely for kdeedu/step). So from now on, the recommended way to build KDE 4.3 (and KOffice) should be to use Eigen 2.0.3. The version of Eigen that's left in kdesupport should be removed (it is the state of the development branch as it was when we moved). My question is: do you want me to make these changes NOW ? (That means, besides removing kdesupport/eigen2, updating all the CMakeLists messages to point to Eigen 2.0.3 instead of kdesupport). Or should I wait a couple of weeks so hopefully distros make packages of Eigen 2.0.3 making it easier to build KDE when it depends on Eigen 2.0.3 ? Or do you want eigen2 to stay in kdesupport until after the kde 4.3 release? If so, do you want me to update it with Eigen 2.0.3 to limit the risk of divergence? Cheers, Benoit [1] it now happens here: http://bitbucket.org/eigen/eigen2