http://www.guildwars2guru.com/news/720-stress-test-changes-skills-traits-recipes-achievements/
Looks like they changed the way Vulnerability works? Look in Warrior for examples. Looks like it used to -30 defense per stack but now it straight up does +1% incoming damage per attack. That's HUGE! I might switch back to axe and just stack axe, rifle, and the new shout vulnerability. +19% incoming damage on a target is just brutal. Love the new shout. Will replace fear shout on my toolbar. The changes to Warrior's healing abilities makes it a harder choice now. I already have lots of condition removal in my build so I might go with the signet with regen on it, now that it's cooldown has been halved. Awesome!