The Ace libraries for World of Warcraft.
It has since become a whole community for World of Warcraft addon developers.
- WowAceUpdater lists more stuff.
bug reporting was http://jira.wowace.com/
- Bug reporting for Cartographer was http://jira.wowace.com/browse/CART
2017-01-28 - http://fin.instinct.org/aceupdates/ exists but doesn't seem to do anything..