Changes:
FIGHTER - 
-Berserk has been replaced with "Rage" which grants a +4 speed and +4 attack.
-"Hardening", "Frenzy" & "Enrage" have been replaced with "Storm aura", "Bear rage" & "Rage of the beast". These act as exclusive archetypes that change how you play fighter and can be selected at 2nd level.

-3 new perks are available and replace "constant bubbling rage", "Clinical" and "single minded":
Great Weapon Master - Take a small attack penalty to do extra damage.
True Strike - point out an enemy and gain an advantage on attacking them for a short duration.
Tough - Start with Stone Skin +2 base Defense.
THIEF - 
- Celebrity and Subtly have been combined into a single talent and subtlety has been replaced with "Poison Dart" which allows you to shoot a close range poison bolt.
-Thief now starts with a throwing knife that can be retrieved after being thrown
-Dagger Master has been updated to be Blade Mastery and now upgrades "throwing knife" damage as well as "Poison Dart" damage.
- Flashbomb has been replaced with evasion which grants a 20% dodge chance (not upgradable) and the evasion skill which grants 100% chance for a short duration but requires resting to recharge.

-2 new perks which replace "Assault Pack" and "Survival Pack" :
Armed and dangerous - start with a non-upgradable pistol that does not alert nearby foes
Poisoner pack - start with a poisoned throwing knife in addition to your standard one as well as a skill that grants 100% poison-strike on attacks
WIZARD - 
-Fireball has been replaced with "enhanced flames" which does AOE damage and inflicts afterburn on targets.
-willpower now has increased scaling in the tower.
-Improved leech range and adds debuff to opponent for a short duration.
-new ability which replaces Ice blast. Arcane study which gives you +5 intelligence (temporarily) and grants a new spell (as if you used a spellbook) it is exclusive with enslave and requires experience to recharge.

-1 new perk which replaces "Now you see me":
Enamour Entity- this is an improved charm spell that charms foes and grants them greater speed and attack while they are charmed.

RANGER- 
 - New ability "Favoured Foe" grants a permanent advantage against a certain foe. Exclusive with Dog Distraction and recharges with experience. 
-Sense Danger has been upgraded to Survival skills which additional gives the skill "Bait" which can be used to lure enemies to you with lowered defences.

PUGILIST-
-Taunt has been replaced with a new talent that grants you a new skill "Overrun" which grants you the ability to charge down foes if you have direct uninterrupted line of sight with them.

-1 new perk which replaces "Fightin' stuff":
Leadin' the charge - +2 base speed and gives you the charge ability.

Alchemist -
-The Gunslinger Perk allows you to take a weapon.

-2 new perks which replace "Treasure Hunter" and "The Future Is bright":
Summoner - Start with 2 new skills  Summon ally and Patch-up
BattleSmith - Start with 2 new skills Power-up and Over-loaded