Only including the changes for easier reading. Source:
http://www.worldofraids.com/v2/
Here are the changes:
Priest
* Prayer of Mending now has a 10 second cooldown.
* Circle of Healing mana cost reduced by 25%. (Source)
* The effectiveness of "Fade: Rank 7" has been increased by approximately 25%.
* The damage absorption of "Power Word: Shield" added by the caster's bonus healing has been increased to 20%.
Shaman
* The bonus of the "Wrath of Air" totem now applies to healing spells as well.
Warrior
* Increased the health bonus from "Commanding Shout" by 50%.
* "Improved Battle Shout" talent renamed to "Commanding Presence" and now increases the health bonus from "Commanding Shout" in addition to increasing the melee attack power from "Battle Shout".
* Tempest Keep: Arcatraz
o The damage dealt by Wrath-Scryer Soccothrates' "Immolation" and "Knock Away" abilities has been reduced.
* Auchindoun Shadow
o Cabal Zealots are now more threatening while under the effect of Shape of the Beast.
* Tempest Keep: Botanica
o Sunseeker Gene-Splicers' Death and Decay now deals significantly less damage and casts less frequently.
o Mutate Fleshlashers now deal less melee damage.
o Mutate Horrors and Fear-Shriekers now have less health.
o Sunseeker Researchers will now cast shocks less frequently.
o Sunseeker Chemists are now Paladin type instead of Warrior type.
o The Blue Seedlings in the High Botanist Freywinn encounter now slow players instead of immobilizing them.
o High Botanist Freywinn will now plant seedlings at a slightly reduced rate.
* Tempest Keep: Mechanar
o Gatewatcher Iron-Hand now wields a Jackhammer.
o Gatewatcher Iron-Hand is now more vocal when perfoming his Jackhammer attack.
* Karazhan
o The use of Divine Shield, Ice Block, or Cloak of Shadows will no longer prematurely detonate the Shade of Aran's Flame Wreath.
o Restless Skeletons will now summon a player if they are unable to path to that player, and deal more melee damage.
o The cooldown of Bellowing Roar has been adjusted to be a more consistent value.