I wanted to add another idea about this....again, alot of work...but maybe something people would like?
Colour code the Updated Green, Yellow, Red
Green- Minor
Yellow- Intermediate
Red- Major
Some hacks get updated ALOT...and it would serve 2 purposes, 1) The urgency of an update, and potentially 2) tell people how far behind they are in updates...I was thinking maybe adding a checkbox for it when the hack is edited? might be worth a look?
Leave it to me to be the idea guy who can't back it up