Re:So, honest question. (Score 2, Informative)

yes they do, you can check out slapt-get and also swarret. Im a fan of slapt-get, you chan check it out here. Easily put into cron if you want it to be updated daily/weekly/montly whichever you prefer with something like

slapt-get --update
slapt-get --upgrade --no-prompt

Check also the possibility of somechangedscript.new for upgraded ways of doing things.