Here is the current 3.1 patch notes for World of Warcraft as posted on mmo-champion.com. Definitely some interesting changes for the classes:


World of Warcraft PTR Patch 3.1.0

The latest test realm patch notes can always be found at http://www.wow-europe.com/en/info/underdev/testrealm.html

The latest patch notes can always be found at http://www.wow-europe.com/en/patchnotes/
General

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All Ground Mounts may now swim without dismounting the rider. Flying Mounts still may NOT, and will dismount the rider upon entering water.
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Ulduar is now available for limited testing. Please visit the Public Test Realms for more details. http://forums.worldofwarcraft.com/board.html?forumId=11572
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Players at maximum level will now be able to visit their trainer to pay a one-time fee and access the dual talent spec feature.
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A new Gear Manager feature has been added. Players will now be able to save gear sets for easy gear switching.

PvP
Battlegrounds

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Players will now be able to queue for battlegrounds from any location.
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Seaforium Barrels can be looted while mounted, can now be seen from anywhere in the zone, and can now be found at the Central Graveyard.
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Teleporters can now be used while mounted and can now be seen from anywhere in the zone.

Classes: General

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Hysteria, Tricks of the Trade, Enrage, Wrecking Crew, Death Wish, Arcane Power, Owlkin Frenzy, The Beast Within, Avenging Wrath and Hysteria damage bonuses no longer stack together.

Death Knight

Blood

Skills

* Pestilence is now 1 rank. It now spreads existing Blood Plague and Frost Fever infections from your target to all other enemies within 10 yards. (Previously dealt damage)
* Strangulate no longer deals damage.
* Blood Boil damage increased, but its range has been reduced.
* Death Pact's heal can no longer crit.
* Blood Strike now instantly strikes the enemy, causing 40% weapon damage plus 305.6, increased by 12.5% per disease on the target at rank 6. (Previously caused 50% weapon damage plus 191, and an additional 95.5 bonus damage per disease)
* Heart Strike now
* instantly strikes the target and his nearest ally, causing 50% weapon damage plus 368, increased by 10% per disease on the target at rank 6. (Previously caused 60% weapon damage plus 220.8, and an additional 110.4 bonus damage per disease)

Talents

* Blood Gorged (Tier 10) no longer grants expertise. Instead your attacks ignore up to 2/4/6/8/10% of the targets armor.
* Heart Strike (Tier 9) now strikes the target and his nearest ally, causing 50% weapon damage plus 125, increased by 10% per disease on the target.
* Might of Morgraine (Tier 9) now increases the critical strike damage bonus of your Blood Boil, Blood Strike, Death Strike, Heart Strike, and Obliterate abilities by 10/20/30%. (Previously was 15/30/45%)
* Sudden Doom (Tier 8 ) is now a 3 point talent and now has a 5/10/15% chance to launch a free Death Coil at your target. (Previously gave a 4/8/12/16/20% chance to make the next death coil cost no runic power and guaranteed it to crit)
* Blood Aura (Tier 7) renamed Improved Blood Presence and now while in Frost Presence or Unholy Presence, you retain 4% healing from Blood Presence, and healing done to you is increased by 10% in Blood Presence.
* Bloody Strikes (Tier 5) now increases the damage of Blood Strike and Heart Strike by 15/30/45%, and increases the damage of Blood Boil by 20/40/60%.
* Scent of Blood (Tier 2) now can proc off dodging, parrying or taking direct damage.
* *New Talent* Improved Death Strike, Tier 8, 2 talent points - Increases the damage of your Death Strike by 15/30%.


Frost

Skills

* Icy Touch now causes Frost Fever to last 15 secs.

Talents

* Hungering Cold and Howling Blast have switched places in the talent tree.
* Howling Blast (Tier 11) now deals 50% additional damage to targets infected with Frost Fever. (Previously dealt double damage)
* Unbreakable Armor (Tier 8 ) now Reinforces your armor with a thick coat of ice, reducing physical damage from all attacks by 0.05 and increasing your strength by 25% for 20 sec. The amount of damage reduced increases as your armor increases. (Previously just increased armor by 25%, strength by 10%, and parry by 5%)
* Blood of the North (Tier 8 ) now affects Frost Strike as well as Blood Strike.
* Chillblains (Tier 7) now reduces movement speed by 15/30/45%. (Previously 10/20/30%)
* Endless Winter moved from Tier 6 to Tier 4.
* Chill of the Grave moved from Tier 5 to Tier 4.
* Runic Power Mastery moved to Tier 1 and is now a 2 point talent. Increases your maximum Runic Power by 15/30. (Previously 3 point talent that increased runic power by 10/20/30)
* Black Ice (Tier 2) increases your frost damage by 4/8/12/16/20%. (Previously 6/12/18/24/30%)
* Glacier Rot moved from Tier 1 to Tier 5 and is now a 3 point talent. Now diseased enemies take 7/13/20% more damage from your Icy Touch, Howling Blast and Frost Strike. (Previously 5/10%)

Unholy

Skills

* Plague Strike now deals 50% weapon damage plus 189 and infects the target with Blood Plague, a disease dealing Shadow damage over time. (No longer removes a HoT)
* Raise Dead cooldown reduced from 5 minutes to 3 minutes. The ghoul now only lasts for 1 minute.

Talents

* Unholy Blight moved from Tier 11 to Tier 5.
* Scourge Strike (Tier 9) now deals 55% of weapon damage as Shadow damage plus 185.63, increased 9% per each of your diseases on the target. (Previously dealt 60% of weapon damage as Shadow damage plus 81, and an additional 40.5 bonus damage per disease.)
* Night of the Dead (Tier 8 ) now reduces the cooldown on Raise Dead by 45/90 sec and Army of the Deat by 5/10 min. (Previously reduced cooldown when you hit the target)
* Desecration (Tier 7) now causes all Plague Strikes to cause the desecrated ground effect. Targets in the area are slowed by 10/20/30/40/50% by the grasping arms of the dead while you cause 1/2/3/4/5% additional damage while standing on the unholy ground. Lasts 12 sec.
* Anti-Magic Zone (Tier 7) no longer requires a rune to activate.
* Unholy Aura (Tier 7) renamed Improved Unholy Presence and changed to: While in Blood Presence or Frost Presence, you retain 8/15% increased movement speed from Unholy Presence, and your runes finish their cooldowns 5/10% faster in Unholy Presence.
* Magic Supression (Tier 6) is now a 3 point talent and You take 2/4/6% less damage from all magic. In addition, your Anti-Magic Shell absorbs an additional 8/16/25% of spell damage. (Previously a 5 point talent)
* Master of Ghouls moved from Tier 6 to Tier 4. It now also reduces the cooldown of your Raise Dead spell by 60 sec.
* Summon Gargoyle moved from Tier 5 to Tier 11.
* Blood-Caked Blade (Tier 4) now has a 3 sec internal cooldown.
* Shadow of Death removed from the game.
* Outbreak (Tier 3) no longer affects Blood Boil. It now affects Plague Strike and Scourge Strike.
* Necrosis (Tier 3) now only affects main hand auto attacks. (Previously affected all auto-attacks)
* Virulence moved from Tier 2 to Tier 1.
* Morbidity moved from Tier 1 to Tier 2.
* *New Talent* Ghoul Frenzy, Tier 6, 1 point talent - Grants your pet 25% haste for 15 sec and heals it for 30% of its health over the duration. 1 Unholy Rune. 45 Yard range. Channeled. 30 sec cooldown.


Druid

Balance

Skills

* Faerie Fire now decreases armor by 5%. (Previously decreased armor by a set amount)

Talents

* Owlkin Frenzy (Tier 8 ) now procs off physical melee and ranged attacks. (Previously was triggered by all attacks)

Feral

Skills

* Faerie Fire now decreases armor by 5%. (Previously decreased armor by a set amount)
* Savage Roar changed to increase physical damage done by 30%. (Previously increased attack power by 40%)
* Maim now stuns the target instead of incapacitate.
* *New Spell* Savage Defense, 1 rank, level 40 - Each time you deal a melee critical strike, you gain Savage Defense, reducing the damage taken from the next physical attack that strikes you by 25% of your attack power.

Talents

* Survival of the Fittest (Tier 6) now increases your armor contribution from cloth and leather items in Bear Form and Dire Bear Form by 11/22/33%. (Previously 22/44/66%)
* Predatory Strikes (Tier 4) now increases now includes Moonkin Form in its effect.
* *New Talent* Primal Gore, Tier 10, 1 point talent - Grants the periodic damage from your Rake, Lacerate and Rip abilities the ability to critically hit.


Restoration

Skills

* Abolish Poison now ticks every 3 secs for 12 secs. (Previously ticked every 2 secs for 8 secs)

Talents

* Replenish (Tier 9) renamed Revitalize.
* Improved Regrowth (Tier 6) renamed Nature's Bounty. Increases the critical effect chance of your Regrowth and Nourish spells by 5/10/15/20/25%. (Previously increased just regrowth crit by 10/20/30/40/50%)
* Intensity (Tier 3) now allows 17/33/50% of mana regeneration to continue while casting. (Previously 10/20/30%)
* Improved Mark of the Wild (Tier 1) now also increases all of your total attributes by 1/2%.
* *New Talent* Improved Barkskin, Tier 10, 2 point talent - Increases the damage reduction granted by your Barkskin spell by 5/10%, and increases resistance to Dispel mechanics by 30/60% while under the effect of Barkskin.


Hunter

Beast Mastery

Skills

* *New Skill* Call Stabled Pet - A pet of your choice busts out of its stable and joins you no matter where you are, replacing your current pet. Cannot be used in combat. Instant. 30 min cooldown. Requires Level 80.


Marksmanship

Skills

* Kill Shot no longer has a minimum range. It can now be used in melee range.

Talents

* Wild Quiver (Tier 9) now increases your chance to shoot an additional shot when doing damage with your auto shot, dealing 80% Nature damage, by 4/8/12%. (Previously it dealt 50% nature damage and had a 4/7/10% chance.)
* Piercing Shots (Tier 7) Your critical Aimed, Steady and Chimera Shots cause the target to bleed for 10/20/30% of the damage dealt over 8 sec. (Previously triggered 2/4/6% armor ignore).
* Ranged Weapon Specialization (Tier 6) is now a 3 point talent, increasing damage with ranged weapons by 1/3/5%. (Previously a 5 point talent increasing damage by 1/2/3/4/5%)


Survival

Skills

* Disengage cooldown increased to 30 secs. (Previously was 25 secs)

Talents

* Hunting Party (Tier 10) is now a 3 point talent, increasing agility by 1/2/3% and your Arcane Shot, Explosive Shot and Steady Shot critical strikes have a 33/66/100% chance to grant up to 10 party or raid members mana regeneration equal to 0.25% of the maximum mana per second. Lasts for 15 sec.
* Trap Mastery moved from Tier 9 to Tier 2 and is now a 3 point talent. Increases the duration of Frost and Freezing trap by 10/20/30%, Periodic damage of Immolation and Explosive trap by 10/20/30%, and number of snakes summoned by Snake Trap by 30%. (Previously was just 1 point)
* *New Talent* Black Arrow (Tier 9) - Fires a Black Arrow at the target, increasing all damage done by you to the target by 6% and dealing [ 10% of RAP + 785 ] Shadow damage over 15 sec. Costs 6% base mana. 5-35 yard range. Instant Cast. 30 sec cooldown.
* Sniper Training (Tier 9) has been changed to increase the critical strike chance of your Kill Shot ability by 5/10/15%, and while standing still for 6 sec., you gain Sniper Training increasing the damage done by your Steady Shot, Aimed Shot, Black Arrow and Explosive Shot by 2/4/6% Lasts 15 sec. (Previously increased damage and critical strike chance based on your range to the target)
* Wyvern Sting (Tier 7) now lasts 30 sec on the target. (Previously lasted 12 sec)
* T.N.T. (Tier 4) now increases the damage done by your Explosive Shot, Explosive Trap and Immolation Trap by 2%. (Previously increased critical strike chance of explosive shot and and gave it a chance to stun the target)
* Lock and Load (Tier 4) now has a 33/66/100% chance to proc off Freezing Shot, Freezing Trap, and Frost Trap, and a 3/7/10% chance to proc off the periodic damage of Immolation Trap and Black Arrow. (Previously worked on all traps and included serpent sting)
* Improved Wing Clip has been removed from the game.


Mage

Arcane

Skills

* Mage Armor has been increased to allow 50% of your mana regneration to continue while casting. (Previously 30%)
* *New Spell* Polymorph Rabbit - Transforms the enemy into a harmless rabbit, forcing it to scamper around for up to 50 sec. While wandering, the rabbit cannot attack or cast spells but will regenerate very quickly. Any damage will transform the target back into its normal form. Only one target can be polymorphed at a time. Only works on Beasts, Humanoids and Critters.

Talents

* Arcane Meditation (Tier 4) Allows 17/33/50% of your mana regeneration to continue while casting. (Previously 10/20/30%)

Fire

Talents

* Burnout (Tier 10) now only affects Fire Spells. (Previously affected all spells)
* Pyromaniac (Tier 7) now allows 17/33/50% of your mana regeneration to continue while casting. (Previously 10/20/30%)


Frost

Talents

* Improved Water Elemental (Tier 9) has been renamed Enduring Winter. It now increases the duration of your Summon Water Elemental spell by 5 sec and your Frostbolt spell has a 33/66/100% chance to grant the Replenishment effect to up to 10 party or raid members mana regeneration equal to 0.25% of their maximum mana per second for 15 sec.


Paladin

* All Paladin auras have had their tooltip changed to note that they work on the entire raid, not just the party.


Holy

Skills

* Exorcism can now be used on all targets, but is now a guaranteed critical strike vs Undead and Demon type mobs.
* Judgement of Light now procs off spells as well. (Previously only "attacks" would trigger this)

Talents

* Purifying Power (Tier 6) now reduces the cooldown of your Exorcism and Holy Wrath spells by 17/33%. (Previously increased the critical strike chance of those spells by 10/20%)
* Pure of Heart (Tier 5) now reduces Curse, Poison, and Disease effects by 15/30%. (Previously was 25/50% but did not include poisons)
* Blessed Hands has been moved from Tier 5 to Tier 4 and now reduces the mana cost of Hand of Freedom, Hand of Sacrifice and Hand of Salvation by 15/30% and cooldowns by 10/20%.
* Improved Concentration Aura's (Tier 4) reduced silence/interrupt effect now works while any aura is active.


Protection

Skills

* Shield of Righteousness now deals 130% of block value + 520 at the highest rank. It no longer causes a high amount of threat. (Previously increased damage by a set amount)
* Blessing of Kings is now a baseline ability. Trainable at level 20.

Talents

* Shield of the Templar (Tier 10) no longer increases the damage of your Holy Shield, Avenger's Shield and Shield of Righteousness spells. Instead it gives your Avenger's Shield a 33/66/100% chance to silence targets hit by it for 3 sec.
* Judgements of the Just (Tier 10) now reduces the cooldown of your Hammer of Justice by 10 sec, increases the duration of your Seal of Justice effect by 0.5 sec, in addition to its previous effect.
* Avenger's Shield's (Tier 9) damage has been increased across all ranks.
* Guarded by the Light (Tier 9) now reduces spell damage taken by 3% and gives a 50% chance to refresh the duration of your Divine Plea when you hit an enemy. (Previously reduced the mana cost of your Holy Shield, Avenger's Shield and Shield of Righteousness spells by 15%.)
* Holy Shield's (Tier 7) damage slightly increased across all ranks.
* Ardent Defender (Tier 7) is now a 3 point talent, reducing damage taken by 10/20/30%. (Previously was a 5 point talent)
* Sacred Duty (Tier 6) increases stamina by 4% now. (Previously was 3%)
* One-Handed Weapon Specialization is now a 3 point talent, increasing damage done with 1 handers by 4/7/10%. (Previously was a 5 point talent)
* Blessing of Sanctuary (Tier 5) now only grants 2% of maximum displayed mana when the target blocks, parries, or dodges a melee attack. (Previously granted 10 rage or 20 runic power or 2% max mana)
* Divine Guardian (Tier 4) now has been changed to redirect damage "(up to a maximum of 150/300% of the Paladin's health)." (Previously had no limit)
* Improved Devotion Aura (Tier 4) now increases the amount healed on any target affected by any of your Auras by 2%. (Previously only worked with Devotion Aura active)
* Improved Hammer of Justice (Tier 4) is now a 2 point talent, reducing the cooldown of Hammer of Justice by 10/20 sec. (Previously had a 3rd rank that reduced cooldown by 30 secs)


Retribution

Talents

* Righteous Vengeance (Tier 10) is now a 3 point talent. When your Judgement and Divine Storm spells deal a critical strike, your target will take 10/20/30% additional damage over 8 sec. (Previously a 5 point talent)
* Fanaticism (Tier 8 ) is now a 3 point talent and now increases the critical strike chance of all Judgements capable of a critical hit by 6/12/18% and reduces threat caused by all actions by 10/20/30% except when under the effects of Righteous Fury. (Previously a 5 point talent)
* Improved Retribution Aura has been removed from the game.
* Improved Retribution Aura's effect has been merged into Sanctified Retribution (Tier 5).
* Divine Purpose has been moved from Tier 5 to Tier 6.


Priest

Discipline

Skills

* Divine Spirit is now a baseline spell.

Talents

* Penance (Tier 11) Damage increased slightly across all ranks.
* Grace (Tier 9) now lasts 15 sec. (Previously lasted 8 sec)
* Rapture (Tier 8 ) revamped. Now a 3 point talent. When your Power Word: Shield is completely absorbed or dispelled you are instantly energized with 1.5% of your total mana, and you have a 33% chance to energize your shielded target with 2% total mana, 8 rage, 16 energy or 32 runic power. This effect cannot occur once every 12 seconds.
* Focused Will (Tier 7) now increases spell critical strike chance by 1/2/3% in addition to its previous effect.
* Reflective Shield has been moved from Tier 7 to Tier 5. It is now a 2 point talent and causes 22/45% of the damage you absorb with Power Word: Shield to reflect back at the attacker.
* Enlightenment (Tier 6) is now a 3 point talent and now increases your total Spirit by 2/4/6% and increases your spell haste by 2/4/6%. (Previously a 5 point talent)
* Meditation (Tier 3) now increases mana regeneration by 17/33/50%. (Previously 10/20/30%)
* Improved Power Word: Fortitude (Tier 2) now also increases your personal stamina by 2/4%.
* Unbreakable Will (Tier 1) now reduces the duration of Stun, Fear, and Silence effects done to you by an additional 6/12/18/24/30%. (Previously 3/6/9/12/15%)
* *New Talent* Improved Flash Heal, Tier 7, 3 point talent - Reduces the mana cost of your Flash Heal by 5/10/15%, and increases the critical effect chance of your Flash Heal by 4/7/10% on friendly targets at or below 50% health.
* *New Talent* Soul Warding, Tier 5, 1 point talent - Reduces the cooldown of your Power Word: Shield ability by 4 sec, and reduces the mana cost of your Power Word: Shield by 30%.


Holy

Skills

* Prayer of Healing is now a targeted spell that heals the target's party.
* Holy Nova mana cost reduced from 27% base mana to 22% base mana.

Talents

* Circle of Healing (Tier 9) healing increased across all ranks.
* Test of Faith (Tier 9) now increases healing by 4/8/12% on friendly targets at or below 50% health.
* Serendipity (Tier 8 ) changed to: When you heal with Binding Heal or Flash Heal, the cast time of your next Greater Heal or Prayer of Healing spell is reduced by 6/12/20%. Stacks up to 3 times. Lasts 20 sec.
* Holy Concentration (Tier 7) changed to: Your mana regeneration is increased by 16/32/50% for 8 sec after you critically heal with Flash Heal, Greater Heal, Binding Heal or Renew. (Previously had a chance to grant clearcasting effect)
* Blessed Resilience (Tier 7) increases the effectiveness of your healing spells by 1/2/3% along with its previous effect.
* Improved Holy Concentration (Tier 9) removed from the game.
* *New Talent* Empowered Renew, Tier 9, 3 point talent - Your Renew spell gains an additional 5/10/15% of your bonus healing effects, and your Renew will instantly heal the target for 5/10/15% of the total periodic effect.


Shadow

Skills

* Shadowfiend now creates a shadowy fiend to attack the target. Caster receives 5% mana when the Shadowfiend attacks. Damage taken by area of effect attacks is reduced, and the Shadowfiend has a reduced chance to be hit by spells and melee attacks. Lasts 15 sec.

Talents

* Dispersion (Tier 11) now clears all snare and movement impairing effects when cast, and makes you immune to them while dispersed.
* Shadowform (Tier 7) now gives your Shadow Word: Pain, Devouring Plague, and Vampiric Touch spells the ability to critically hit.
* Darkness moved from Tier 6 to Tier 1.
* Silence (Tier 5) range increased to 30 yards. (Previously was 20 yards)
* Vampiric Embrace (Tier 5) now lasts 5 mins. (Previously lasted 1 min)
* Spirit Tap (Tier 1) now increases mana regeneration while casting by 87%. (Previously 50%)
* Improved Spirit Tap (Tier 1) increases mana regeneration while casting by 17/33%. (Previously 10/20%)
* *New Talent* Improved Devouring Plague, Tier 6, 3 point talent - Increases the periodic damage done by your Devouring Plague by 5/10/15%, and when you cast Devouring Plague you instantly deal damage equal to 5/10/15% of its total periodic effect.

Rogue

Assassination

Skills

* Envenom now gives an additional 15% chance to apply Deadly Poison and a 75% increased frequency of applying Instant Poison for 1 sec plus an additional 1 sec per combo point. (Previously gave a 15% chance to apply both deadly and instant poison)
* Expose Armor now reduces armor by 20%, lasting longer per combo point.

Talents

* Hunger For Blood (Tier 11) changed to: Enrages you, increasing all damage caused by 15%. Requires a bleed effect to be active on the target. Lasts 30 sec. (Previously increased damage by 5%)
* Improved Poisons (Tier 4) changed to increases the chance to apply Deadly Poison to your target by 2/4/6/8/10% and the frequency of applying Instant Poison to your target by 10/20/30/40/50%. (Previously increased chance to apply Deadly and Instant poison by 2/4/6/8/10%)


Combat

Talents

* Savage Combat (Tier 9) now increases damage caused against poison enemies by 4%. (Previously increased damage by 1%)
* Adrenaline Rush (Tier 7) cooldown reduced from 5 minutes to 3 minutes.
* Lightning Reflexes (Tier 4) is now a 3 point talent and Increases your Dodge chance by 2/4/6% and gives you 4/7/10% melee haste. (Previously just increased dodge by 1/2/3/4/5%)


Shaman

Elemental

Skills

* Fire Nova Totem's mana cost has been reduced.

Talents

* *New Talent* Booming Echoes, Tier 8, 2 point talent - Reduces the cooldown of your Flame Shock and Frost Shock spells by an additional 1/2 sec., and increases the direct damage done by your Flame Shock and Frost Shock spells by an additional 10/20%.


Enchancement

Skills

* Bloodlust and Heroism now puts a debuff on you preventing you from using gaining the benefits of them for 10 mins. They now have a 5 min cooldown. (Previously had a 5 min debuff with a 10 min cooldown)

Talents

* Improved Stormstrike (Tier 8 ) now has a 50/100% chance to grant you 20% of your base mana when you Stormstrike.
* Stormstrike (Tier 7) now affects the next 4 nature attacks but only lasts 10 secs now. (Previously only affected 2 attacks and lasted 12 secs)
* Unleashed Rage (Tier 6) is now a 3 point talent. It now passively increases your agility by 1/2/3% in addition to causing your critical hits with melee attacks to increase all party and raid members' attack power by 4/7/10% if within 45 yards of the Shaman. Lasts 10 sec.
* Spirit Weapons (Tier 5) now reduces all threat, just not melee threat.
* Toughness (Tier 4) now increases stamina by 2/4/6/8/10% instead of increasing armor value.
* *New Talent* Frozen Power, Tier 6, 2 point talent - Increases the damage done by your Frostbrand Weapon if it is enchanted on your main-hand weapon by 10/20%, and your Frost Shock has a 50/100% chance to root the target in Ice for 5 sec. when used on targets at or further than 15 yards from you.


Restoration

Skills

* Poison Cleansing Totem and Disease Cleansing Totem have been merged into 1 totem.


Warlock

Affliction

Skills

* Curse of Elements Rank 5 now increases spell damage taken by the target by 13% (Previously 10%)
* Curse of Recklessness has been removed from the game.
* Curse of Weakness now reduces armor by 5% along with its previous effect.


Talents

* Pandemic (Tier 9) is now a 1 point talent. It now grants the periodic damage from your Corruption and Unstable Affliction spells the ability to critically hit.
* Malediction (Tier 8 ) now increases spell damage by 1/2/3%. (Previously also increased the effect of curse of elements)
* Eradication (Tier 7) has been changed to: When you deal damage with Corruption, you have a 2/4/6% chance to gain the Eradication effect. The Eradication effect increases the critical strike chance of your Shadow Bolt spell by 30%. Each critical strike reduces the critical strike bonus by 10%. Lasts 30 sec.
* Shadow Embrace (Tier 5) now increases Shadow Periodic damage. (Previously increased all periodic damage)
* Siphon Life (Tier 5) is no longer a spell. It is a passive talent that When you deal damage with your Corruption spell, you are instantly healed for 40% of the damage done.
* Frailty has been renamed Improved Curse of Weakness (Tier 2).
* Supression (Tier 1) now increases chance to hit with all spells. (Previously only affected affliction spells)


Demonology

Skills

* Enslave Demon penalties have been reduced. While enslaved, the time between the demon's attacks is increased by 30% and its casting speed is slowed by 20%. (Previously attack speed was increased by 40% and casting speed slowed by 30%)


Talents

* Fel Synergy has been moved from Tier 8 to Tier 1. You have a 50/100% chance to heal your pet for 50/30% of the amount of damage done by you.
* Mana Feed is now a 1 point talent and has been moved from Tier 6 to Tier 5. Your demon now gains 100% of the mana you gain when you gain mana from Drain Mana or Life Tap spells
* Master Conjuror (Tier 5) now increases the combat ratings gained from your conjured Firestone and Spellstone by 150/300%. (Previously 15/30%)
* Demonic Embrace (tier 1) is now a 3 point talent. Increases your total stamina by 4/7/10%. (Previously 2/4/6/8/10%)
* Demonic Empathy has been removed from the game.
* Demonic Sacrifice has been removed from the game.
* Improved Enslave Demon has been removed from the game.
* *New Talent* Nemesis, Tier 9, 3 point talent - Reduces the cooldown of your Demonic Empowerment, Metamorphosis, Soulstone and Fel Domination spells by 10/20/30%.
* *New Talent* Decimation, Tier 8, 2 point talent - When you Shadowbolt or Incinerate a target that is at or below 35% health, the cast time of your next Soulfire is reduced by 30/60%. Lasts 10 sec.
* *New Talent* Molten Core, Tier 6, 3 point talent - Your Shadow spells and damage over time effects have a 5/10/15% chance to increase the damage of your Fire spells by 10% for 12 sec.


Destruction

Talents

* Improved Soul Leech (Tier 8 ) now has a replenishment effect along with its previous effect.
* Conflagrate (Tier 7) is now 1 rank. It consumes an Immolate or Shadowflame effect on the enemy target to instantly deal damage equal to 15 sec of your Immolate or 8 sec of your Shadowflame.
* Backlash has been moved from Tier 7 to Tier 5.
* Pyroclasm has been moved from Tier 5 to Tier 7 and is now a 3 point talent. It now states when you critically strike with Searing Pain or Conflagrate, your Fire and Shadow spell damage is increased by 2/4/6% for 10 sec.
* Improved Immolate (Tier 5) now increases all damage done by Immolate. (Previously only increased the initial damage)
* Aftermath (Tier 2) now increases the periodic damage done by your Immolate by 3/6%, and your Conflagrate has a 50/100% chance to daze the target for 5 sec.
* Cataclysm (Tier 2) now reduces the Mana cost of your Destruction spells by 4/7/10%. (Previously increased hit chance with destruction spells and reduced mana cost by 1/2/3%)
* Improved Shadow Bolt (Tier 1) changed to Increases the damage done by your Shadow Bolt spell by 1/2/3/4/5%, and your Shadow Bolt causes your target to be vulnerable to spell damage, increasing spell critical strike chance against that target by 1/2/3/4/5%. Effect lasts 30 sec.
* Molten Core moved to demonology.
* *New Talent* Molten Skin, Tier 2, 3 point talent - Reduces all damage taken by 2/4/6%.


Warrior

Arms

Talents

* Wrecking Crew (Tier 10) now states that it no longer stacks with enrage.
* Blood Frenzy (Tier 9) now increases all physical damage done to the target by 2/4%. (Previously was 1/2%)


Fury

Talents

* Titan's Grip (Tier 11) now reduces physical damage you deal by 10%.


Protection

Skills

* Sunder Armor now reduces target's armor by 4% per application. Stacks up to 5. (Previously reduced armor by a set amount)

Professions

*
Alchemy
o
Blackmouth Oil and Fire Oil no longer require a vial.
o
Increased the health granted by the Flask of Stoneblood.
o
The Mercurial Stone is no longer required as a tool for alchemists. It is instead a green quality bind-on-equip trinket.
*
Blacksmithing
o
Most of the recipes in the 1-300 skill range of blacksmithing have had their stats updated to be more useful.
o
Added a new recipe for the Titansteel Spellblade.
o
Titanium Plating now reduces the duration of disarm effects by 50% as well as increasing your block value.
*
Cooking
o
Grub now sells the Dig Rat Stew recipe to players who completed the quest.
o
Prospector Khazgorm, found in Bael Modan in southern The Barrens, now sells the recipe for Dig Rat Stew to the Alliance.
*
Enchanting
o
Added a recipe for enchanting staves with spell power.
o
Several recipes in the 250-300 skill range have been rebalanced.
*
Jewelcrafting
o
Added a new recipe to cut black diamonds.
*
Elemental Leatherworking
o
Shadowskin Gloves and Dusky Boots no longer require Shadowcat Hide to create, but instead require an equal quantity of Shadow Silk. Shadowcat Hides can no longer be obtained from skinning.

Quests

*
The fight event for the "Grim(oire) Business" quest at Vim'gol's Circle in the Blade's Edge Mountains now only requires one character to stand within a fire circle in order to summon Vim'gol the Vile. However, it still takes five characters, one in each of the fire circles, in order to interrupt Vim'gol the Vile's Unholy Growth cast.

Dungeons and Raids
The Eye of Eternity

*
Malygos will now properly delay before breathing after a Vortex on Heroic difficulty.

Naxxramas

*
The Chains of Kel'Thuzad will no longer reset the raid's threat.
*
The Portal of Shadows created by Shade of Naxxramas will only persist for a maximum of one minute.
*
Players with pets who attempt to use the Obedience Crystals in Naxxramas will have their pets dismissed automatically so they may possess an Understudy.

User Interface

*
New Advanced features for quest tracking are now available. Players will need to activate this option within the Interface panel.
*
A new Color Blind option is available under the Interface panel.
*
For additional notes on Lua and XML changes please visit the UI & Macros forum.

Items
Glyphs

*
Glyph of Blood Boil: Now only applies a snare to diseased targets.
*
Glyph of Holy Light: Can no longer crit and has had its range updated.
*
Glyph of Mocking Blow correctly increases damage of the ability by 25%.
*
Glyph of Shocking's tooltip has been corrected.
*
Glyph of Sprint no longer reduces the duration.
*
Darkmoon Cards of the North will now take three seconds per card to create.
*
Divine Hymn will now trigger Illustration of the Dragon Soul.
*
Frozen Scepter of Necromancy now sounds like other maces.
*
Heavy Junkboxes will no longer have deprecated poison materials.
*
Magic Dust now has a 10 second PvP duration.
*
Old Naxxramas Shoulder Enchants will now soulbind items.
*
Outrider's Lammellar Legguards and Sentinel's Mail Leggings have had their costs reduced to the correct value.
*
Pack of Endless Pockets can now be mailed.
*
Patroller's Pack now sounds like a bag.
*
PvP Trinkets will now break Shackle Undead.
*
Several beverages missing from the "Beverages Consumed" statistic have been added.
*
Several foods missing from the Food Eaten statistic have been added.
*
Thunder Capacitor again requires four charges.
*
Thunder Capacitor's cooldown functions.
*
White Tickbird Hatchling is now classified as a Pet.

Bug Fixes

*
Dartol's Rod of Transformation has had its tooltip corrected.
*
Mace of Unyielding Life is correctly a 2H weapon.
*
Many Northrend maces now make correct noises when sheathed and unsheathed.
*
Many items with 110 attack power now correctly grant 110 ranged attack power.
*
Oracle Talisman of Ablution's spell data has been clarified.
*
Personal Rating Requirements for offhand Deadly Gladiator items should now display correctly.
*
Several Hateful and Deadly plate helms were over budget and have been corrected.
*
Yaaarrrr now has a detailed tooltip.

Shaman

*
Tremor Totem: Now correctly pulses every 3 sec, up from 1 sec.

Rest assured that I will be heavily watching this new patch so stay tuned!

*NOTE* These notes are completely subject to change! I will try my best to keep this as updated as possible!