General Improvements - We've slowed the initial pace of enemies at the start of combat, allowing tactical positioning to play a more useful and important role. They also generally gain more health as the game progresses, they're less likely to explode into puddles of blood and gore all the time and their basic attacks are less likely to cause interruptions. Likewise, party members now resume their previous actions once interrupted so you don't have to micromanage them as much and ask them to swig that potion more than once. That said, silence effects and disruptions to stealth have been beefed up a little, making those rarer sorts of interruptions play a more critical role. Enemy commanders are also a little smarter, throwing stun grenades while encouraging their troops to concentrate on a single target. And elemental resistances actually cap out at 95% now, meaning no one can be fully immune to a given damage type.
Warriors - Overall, warriors were a little more powerful than we wanted them to be, making combat a bit of a cakewalk for these players. The bulk of this had to do with how frequently various abilities were applying the Stagger effect so a lot of our efforts were focused on scaling that frequency back a little (we also reduced other classes' ability to take advantage of the Stagger effect as well). The costs and effectiveness of a few abilities were also tweaked and we increased the effectiveness of some of the threat generation abilities. The effectiveness of abilities like Berzerk were also made more effective.
Rogues - Rogues, on the other hand, were still a little weaker than we wanted. They'll now regenerate stamina more quickly while performing basic attacks, we've increased the damage of some abilities, and we've made it easier for them to disorient their opponents and reduce their threat levels. We did lengthen some of the cooldowns, however.
Mages - Mages were a bit of a mixed bag and it was very easy for them to unintentionally evolve into glass cannons - powerful but finicky and fragile. Part of this was due to disparity between their different ability chains and upgrade paths, for instance, with some being obviously underpowered and others over-powered. We wanted to make them a little more forgiving and easier to play while also achieving a more even balance between the different upgrade paths. We juggled the damage and duration of a bunch of offensive abilities up and down to achieve that balance while also making their defensive abilities a little more powerful.