Sorry, I don't understand your question. By "treadmill" I mean sticking to a particular distro year after year, upgrading regularly -- it could be Ubuntu, Debian, Red Hat, CentOS, etc. Unless you're constantly switching distros, you're on a treadmill. I wasn't comparing Ubuntu to other distros.
Thanks. Yes, you're right, sometimes "treadmill" is used pejoratively to describe forced upgrades that otherwise would be unnecessary. I was referring to the fact that we are all voluntarily installing security updates and/or improved versions of the software we use, year after year.
FWIW, I did pick up the pejorative connotation at first, but then realized it probably wasn't intended that way due to the complete lack of other negativity in the post.
