New great balace update patch notes were released on official Guild Wars 2 site. In the interest of balance all classes has had a pass to over skills. To not leave players in dark, there are lots of explanations abou each class changes, so you can find all needed info in patch notes.
Post starts with words:
"In this balance update, we're increasing the target cap for a select number of skills and traits. When doing this, we must consider a variety of aspects, from game health to srver performance. These changes are intended for the specific purpose of improving large-group compositions and to improve their general support capability."
If you playing GW2, you have to check out your hero class updates before loggin in, you can find all info on official Guild Wars 2 site.