Guild Wars players will automatically download an update the next time they log in. The update is fairly small and you can see the details below.

Update - Thursday August 21 Skill Updates

PvE and PvP

Elementalist

* Glimmering Mark: increased damage to 10..30.
* Glowing Ice: Energy gain reduced to 2..9.
* Icy Shackles: snare duration reduced to 1..10 seconds.

Ranger

* Disrupting Lunge: recharge time increased to 20 seconds.

PvP

Monk

* Smiter's Boon: recharge time increased to 90 seconds, Energy cost increased to 25, duration reduced to 5 seconds.

AI Updates

* Updated the AI for Heroes and henchmen to fix an issue that caused them to sometimes attack enemy targets from too far away.
* Updated the AI for Heroes and henchmen to improve their ability to recognize when their leader is fleeing from combat.
* Updated the AI for Heroes and henchmen to fix an issue that caused them to occasionally become confused and run in circles.

You can check out the entire Guild Wars site at the link above.