d-apt <http://d-apt.sourceforge.net/> changed the distribution name from "dmd" to "d-apt".
Download the last "d-apt.list" to update: $ sudo wget http://master.dl.sourceforge.net/project/d-apt/files/d-apt.list -O /etc/apt/sources.list.d/d-apt.list The new distribution allows to install any deb package version available at d-apt. i.e. "dmd-bin" deb package is available for versions 2.064.2, 2.065.0 and 2.066.1 To install an old dmd version: $ sudo apt-get install dmd-bin=2.064.2-0 libphobos2-dev=2.064.2-0 Legacy distribution will be disabled on dmd v2.067.0 release.