I also can't reproduce this bug. dpkg --compare-versions 2.2.14 lt 2.2.0; echo $? 1 dpkg --compare-versions 2.2.14 gt 2.2.0; echo $? 0 dpkg 1.9.21 libc6 2.2.5-11.5 Perhaps the only affected version is 1.9.18 ? -- Emanuele Rocca