players of Dark Age of Camelot can yield double experience and coin in all Classic terrain and dungeon zones until November 10th, Mythic Entertainment released this events in order to celebrate the Fifth Anniversary of Dark Age of Camelot.

 
The dev team, particularly a crazy man with the initials of RF on the content team, wanted you to have something nice. Here?s the hot fix note:

In celebration of the Fifth Anniversary of Dark Age of Camelot, all Classic terrain and dungeon zones will yield double experience and coin for one month (until November 10th).