Debian: apt preferences ####################### Install some packages from testing ================================== From: http://stackoverflow.com/questions/512906 Add the following to ``/etc/apt/preferences``:: Package: * Pin: release a=testing Pin-Priority: 200 ``200`` means that new packages in testing still override local packages that are not in stable (local is always ``100``), but not ones that are in the stable repo as well. To install packages from testing:: $ apt-get install -t testing