Barbarian

rage duration is 3 + (newly improved) constitution modifier rounds, feat Extended Rage adds another 5 rounds to the duration
after rage ends, barbarian is fatigued (-2str, -2dex, 50% speed decrease) for a duration of 10 rounds
damage reduction now starts at lv 7 (was 11) and increases by +1/- every 3 levels thereafter
gains Indomitable Will feat (additional +4 bonus to will saving throws vs mind spells) at lvl 14
gains Tireless Rage feat (no longer suffer from fatigue after rage ends) at lvl 17
gains Mighty Rage at lv 20
Mighty Rage is now passive feat improving normal's rage bonuses
rage bonuses doesn't count towards +12 cap