Barbarian

Whirlwind
= Fury cost from 16 to 9 10
= Current cost is now a flat value per cycle + an additional cost based on attack speed. Changing this slightly so that the new continual cost is 7 flat + 3 per cycle. The end result is that the cost discrepancy between slow weapons and fast weapons has been greatly reduced.

Demon Hunter

Evasive Fire
= Skill Rune Shrapnel has been replaced with a new rune: Hardened
Hardened increases your Armor by 50% 25% for 3 seconds and replaces the backflip

Wizard

Ice Armor
= Now reduces damage from melee attacks by 8% 12%
= Skill Rune Crystallize
Armor bonus per stack reduced from 30% to 20%

Meteor
= Delay between cast and impact reduced from 2 seconds to 1.25 seconds
= Arcane Power cost reduced from 60 to 50
= Skill Rune Star Pact
Proc coefficient reduced from 0.1 to 0.05
= Skill Rune Meteor Shower
Proc coefficient reduced from 0.25 to 0.10625
= Skill Rune Liquefy
Proc coefficient reduced from 0.125 to 0.10625

Ray of Frost
= Skill Rune Sleet Storm
Weapon damage increased from 215% to 333% 280%
Proc scalar reduced from 0.25 to 0.1875

Spectral Blade
= Proc coefficient reduced from 0.222 to 0.14
= Skill Rune Healing Blades
Removed Critical Hit requirement
Heal amount reduced from 8% to 5% of critical damage done
= Skill Rune Thrown Blades
Proc coefficient reduced from 0.111 to 0.08

Storm Armor
= Now triggers much more frequently

Bug Fixes
= Archon: Teleport
Now properly breaks roots when cast

= Magic Weapon
Skill Rune Blood Magic
Blood Magic should now work with damge over time spells (such as Archon: Disintegrate, Ray of Frost, etc)

= Illusionist
Illusionist should now reset the cooldown of Archon: Teleport when it procs

Items

The chance for Legendary and set items to drop has been doubled
The Hellfire Ring can no longer be dropped on the ground
Maras Kaleidoscope can now correctly roll 3 random affixes in addition to its 3 fixed affixes
Fixed an issue with Nagelring and Unity legendary rings which caused them to not drop

Monsters

Elite modifiers have been changed slightly at higher levels:
= The minimum stun duration required for most Elites is now 0.65 seconds (up from 0.5 seconds); stuns less than 0.65 seconds will have no effect
= The minimum stun duration required for Rares and bosses is now 0.85 seconds (up from 0.5 seconds); stuns less than 0.85 seconds will have no effect
= Lacunis now have a cooldown on their combo attack

Bug Fixes

Monsters with the Desecrator affix will no longer occasionally cast desecrator pools on players more than 50 yards away
Arcane Enchanted will now properly reduced their damage based on a players Damage Reduction Against Elites modifier

Source : Battle.net