Funcom has posted the update notes for the most recent expansion for Age of Conan: Hyborean Adventures.

    Massive PvP

        * Player city keeps now contain a vendor that sells siege weapons.
        * Players will now get teleported out of the zone before the battle starts.
        * Traders that would not spawn at the Battlekeep Tradeposts will now spawn. Traders will now be available at Battlekeeps.
        * Ballista NPCs will no longer spawn at an unbuilt tower.
        * The Boarder Kingdoms has had its environments adjusted. This should reduce draw-distance in those playfields and contribute to a performance-increase.