Listed below are recent fixes we have applied to the game. Keep in mind that some of these changes may not be active until after the realm has been restarted.

4/16/09

• We have made it so player cannot attack additional quest giver NPCs at the Argent Tournament.
  
• Pets have been properly trained to now attack Kologarn when instructed.
  
• Hunter pets should now have their talents refunded when a hunter switches talent specs, even if they are dismissed at the time.
  
• When re-implemented into the game, the trash mobs before XT-002 Deconstructor should be a little easier to defeat.
  
• Blood Boil should no longer penetrate Ice Block or Divine Shield.
  
• Rank 2 of maim should now correctly provide an interrupt effect.
  
• Improved Aspect of the Hawk should no longer allow Rapid Regeneration to provide additional mana beyond the intended scope of the ability.
  
• Players killed or ghosts that move into Crystalsong Forest should now be on a spectral gryphon to ride back to their body.
  
• Champion of the Frozen Wastes should now be able to be completed again.
  
• Lifebloom can no longer be forced to bloom early.
  
• Stunning a druid while not in cat form should no longer remove the Primal Tenacity buff.
  
• The Glyph of Envenom was not supposed to be put into the game and has been removed.
  
• Quest giving NPCs at the Argent Tournament should no longer be able to be attacked by players.
  
• Certain fishing nodes for one of the fishing daily quests should no longer be spawned on land.
  
• The book of glyph mastery has had its drop rate increased.
  
• T.N.T. should now properly increase the damage of Explosive Trap.
  
• The disarm effect from Psychic Horror should no longer be able to be dodged.
  
• Players should no longer be able to equip and soulbind an item they aren’t able to use.

4/15/09

• We have altered XT-002 Deconstructor's heart aggro radius down to 60 yards so players will no longer get stuck in combat when at the entrance to his room.
  
• The trash mobs before XT-002 Deconstructor have temporarily been disabled. These mobs will return in the future after we have resolve the issue with them being linked.
  
• Shattering a Construct during the Ignis the Furnace Master encounter will now decrease the number of Strength of the Creator stack buffs he has by one.
  
• You can no longer check the box to make your character “at war” with the Sunreavers faction.
  
• Upon completion of the quest “The Last Line of Defense” you will continue to the proper phase for the story in Icecrown.
  
• We have hotfixed the damage of the Warlock spell Conflagrate from 100% to 70% of Immolate’s total periodic damage instantly. The tooltip may still show 100% until a future update though.
  
• Death knights casting Reaping will no longer cause Pestilence to convert 2 Blood Runes into Death Runes.
  
• The Dark Rune Sentinels in the 10 player Razorscale encounter have had hit points and damage reduced.
  
• The effects of Meltdown will no longer be able to be bypassed by using Divine Shield.
  
• Each difficulty level of Flame Leviathon’s hard modes have had the boss’s health increased.
  
• We have temporarily removed Emblems of Valor and Emblems of Conquest from all levels of difficulty from the chest, Freya's Gift, that you receive upon completion of the Freya encounter. We will restore these in a future patch when the issue has been resolved.
  
• The enrage time for the Razorscale encounter has been increased to 10 minutes.
  
• The Dark Rune Watchers will no longer cast chain lightning while moving.
  
• Elemental Mastery will no longer allow a player to cast 2 spells instantly.

4/9/09

• We recently made a change to the sell value and disenchant materials obtained from Legplates of Conquest. The material costs used to create this item were unintentionally low, and we were prompted to make changes to minimize the impact on the game's economy.

4/8/09

• We have updated the Silent Fang so the chance to proc decreases starting at level 61 and is no longer possible on targets level 71+. The proc effect also causes diminishing returns with controllable silences such as Improved Counterspell and Strangulate.

4/1/09

• The debuff caused by the Rune of Razorice is no longer dispellable.
  
• The weapon enchants Rune of Razorice and Rune of Lichbane will no longer cause the Killing Machine talent to be triggered more often.

4/17/09

• Several changes to the Razorscale encounter have been made including the range and damage of the Dark Rune Watcher’s Chain Lightning being reduced, and the radius of Razorscale’s Devouring Flame being slightly reduced.
  
• To increase the challenge, Hodir’s hard mode should need to be completed faster than before and the bonus of the Moonlight buff that NPCs provide to players should be decreased.
  
• Totem of the Dancing Flame should no longer cause a target affected by Stormstrike to take additional damage.
  
• Maim should no longer be removable with Berserker Rage.
  
• The damage done by Thorim and Sif in hard mode has been increased in multiple ways.
  
• Freya has had her health and damage increased in hard mode in multiple ways.
  
• The Ignis the Furnace encounter has received several changes. To make his individual hits less devastating, we reduced his overall melee damage by about 15% but he swings faster now. In normal mode we increased the cooldown of Activate Construct from 30 to 40 seconds. We also decreased the damage of the Scorch ground effect by 20% on both difficulties.
  
• XT-002 Deconstructor’s health and damage has been slightly increased in hard mode.
  
• XT-002 Deconstructor will no longer cast Light Bomb or Gravity Bomb while channeling Tympanic Tantrum.
  
• Piercing Shots will now cause the correct amount of damage against shielded targets.
  
• The healing a Death Knight receives from damage done by Death Strike has been reduced.
  
• Earthen Power will now properly be applied on the first pulse of an Earthbind Totem.
  
• The paladin ability Vengeance can no longer be spellstolen.
  
• For the trash leading up to Ignis the Furnace Master, the Magma Rager’s Superheated Winds have had their speed reduced. The normal mode Molten Colossus have had the cooldown of Pyroblast increased.
  
• The trash mobs leading to Mimiron can now see through stealth/invisible, no more sneaking past.
  
• In the General Vezax encounter on hard mode, the Saronite Animus’s Profound Darkness will now hit harder.
  
• The Twilight Whelps on the Sartharion encounter will now properly come outside of the twilight realm.
  
• Ignis the Furnace Master should no longer melee players he is grabbing.

4/21/09

• The Saronite Animus in the heroic General Vezax encounter has had its health increased.
  
• The Mimiron hard mode has received the following changes: increased damage from Flames, increased damage from Frost Bomb (in heroic), increased damage from Water Spray, and increased the health and damage bonuses he receives from Emergency Mode.
  
• The damage bonus of the Frozen Power talent should no longer affect boss creatures.
  
• The buff players receive from Tenacity in Wintergrasp is now stronger.
  
• Stoneclaw Totem should no longer put a shield on hostile targets.
  
• For the trash mobs leading to Mimiron: the damage from a Clockwork Sapper’s Energy Sap ability has been decreased, the Energy Sap no longer drains mana, and the health of Boomer XP-500 has been decreased.
  
• General Vezax’s abilities, Mark of the Faceless and Shadow Crash, may hit players in melee range depending on the situation and player setup.
  
• Players should no longer be able to quench the Unquenchable Flames debuff from a Molten Colossus by using spells like Cloak of Shadows or Divine Protection. The Molten damage from when Iron Constructs turn molten has been reduced, the ground damage from Scorch has been reduced, and the total health of Ignis himself has been reduced.
  
• For Ignis the Furnace master, Strength of the Creator will now only affect physical damage and he will have to wait for a short time to charge after casting Flame Jets.
  
• Katherine Lee should no longer be attackable in Dalaran, meanies.
  
• Shattering Throw will no longer consume an extra 25 rage.
  
• The heirloom item, Discerning Eye of the Beast, will now return mana at any level.
  
• The item Gauntlets of the Wretched can now be sold or disenchanted.
  
• All of the additional creatures spawned during the XT-002 Deconstructor encounter can now be snared in either difficulty.
  
• It will be slightly more difficult to skip Tympanic Tantrum on XT-002 Deconstructor.
  
• For the Hodir encounter, the damage from Champion of Hodir’s Freezing Breath has been reduced, the haste effect from Starlight has been decreased, and the timer for the hard mode has been decreased.
  
• For the Thorim encounter, the Dark Rune Champion should no longer whirlwind after being disarmed and the Runic Colossus should no longer melee when it charges.
  
• Glyph of Polymorph will no longer limit the number of recipes learned through Northrend Inscription Research.
  
• The Iron Council encounter has received the following changes: the amount healed through Electric Charge has been increased, the timer to Berserk has been increased, the range of Overload has been decreased, the Lightning Elementals are no longer immune to the nature school, Stormcaller Brundir's melee damage has been decreased (only in normal mode), and increased Runemaster Molgeim's damage (only in heroic mode).
  
• The Kologarn encounter has received the following changes: the speed of the Eyebeam has been decreased, the amount of damaged required to break a player from Stone Grip has been decreased, and slightly decreased the amount of damage done by Stone Grip.
  
• Some changes we have made to the trash mobs in the Antechamber (the area near Iron Council) are: the Devastating Leap from the Chamber Overseer is now a Stun Mechanic, Champer Overseers should no longer be immune to disarm, standing on the Flaming Rune should no longer proc Runic Explosion, Iron Menders should be immune to charm, Charged Dwarves should be immune to charm, the damage from Ball Lightning cast by Lightning Charged Iron Dwarves has been decreased in heroic difficulty, and the damage of Runed Flame Jets have been decreased.
  
• The Auriaya encounter has received the following changes: Sanctum Sentries should no longer spawn while Auriaya is in combat and lowered the damage of Savage Pounce.
  
• Sniper Training should no longer remove players from stealth.
  
• Death Strike will now heal the Death Knight for 5% of his or her maximum health per disease on the target, up to a maximum of 15%.
  
• Focus Magic and Hunger for Blood should no longer last through a talent switch.
  
• Vanish should now properly remove the effects of the Mage spell Slow.
  
• The Mimiron encounter has received the following changes: the damage of Proximity Mines has been decreased, Proximity Mines should no longer explode and damage players after they explode and disappear, the initial cooldown of Shock Blast in phase 4 has been altered so it shouldn't be cast the same time as Laser Barrage in this phase, the casting time of Self Repair has been increased, and the Assault Bots had their damage decreased in both and normal modes and their health decreased in only heroic mode.
  
• Emalon should no longer use any of his special abilities for a short time after casting Overcharge.

• The time between Mole Machines spawning in the Razorscale encounter has been slightly increased.

4/21/09

• The Yogg-Saron encounter has received the following changes: Guardians of Yogg-Saron in phase 1 and Immortal Guardians in phase 3 have had their health reduced by 15% in heroic mode, the Destabilization Matrix cast by Mimiron will now correctly hinder the casting speed of Crusher Tentacles in both normal and heroic modes.
  
• Psychic Horror will now properly disarm targets at all ranges.
  
• The Razorscale encounter has received the following changes: the mole machines should now spawn closer together, Razorscale’s Fireball damage has been decreased in normal mode only, and Dark Rune Sentinel health has been reduced.
  
• Players can no longer summon the Black Knight unless you are riding an Argent Warhorse.
  
• Some of the trash mobs in Ulduar have received the following changes: the Molten Colossus should do less damage in normal mode, the Superheated Winds cast by Magma Ragers should have a smaller radius, and a slightly slower periodic damage, and Faceless Horrors have had their health reduced.
  
• The Stone Nova ability cast by Rubble in the Kologarn encounter has had it’s damage decreased, will now be mitigated by armor, but can no longer be blocked, dodged, or parried.
  
• Freya’s Gift will now properly contain Emblems of Valor or Emblems of Conquest as appropriate for the completion of the encounter.
  
• Kologarn should no longer permanently despawn without being killed.
  
• Some creatures in the Conservatory of Life have undergone the following changes: the health of Guardian Lashers has been reduced, reduced the number of charges of Elder Stonebark’s Petrified Bark ability, the healing of the Forest Swarmer’s Pollinate ability has been reduced, the frequency of the Forest Swarmer’s Pollinate ability has been increased, the healing of the Misguided Nymph’s Bind Life ability has been reduced in heroic mode.
  
• Ignis the Furnace master has had his melee damage reduced.
  
• Shadow Mastery and Improved Scorch will no longer stack with each other.
  
• Critical strikes from the Hunter ability Explosive Shot should properly trigger Thrill of the Hunt again.

4/22/09

• General Vezax’s Shadow Crash ability will no longer benefit non-caster classes.
  
• Mother Shahraz’s Fatal Attraction ability will once again hit only 3 people at a time.
  
• Players can no longer use the Fetch Ball or Rope Leash on the Argent Gruntling.
  
• Players who are exalted with the Argent Crusade will no longer be able to complete the quest “Contributin' To The Cause” in the Argent Pavillion.
  
• The level requirement for the following quests has been appropriately set to level 65: Shipment: Wicked Sun Brooch, Infused Mushroom Meatloaf, Mustard Dogs!, and Cheese for Glowergold.
  
• The enrage timer on XT-002 Deconstructor has been increased.
  
• The rating requirement for Furious Gladiator's Armwraps of Salvation has been changed to bring them in line with other items of this type.
  
• The Feral Essence on the Feral Defender in the Auriaya encounter will decrease anytime one is killed as intended.
  
• The Stone Nova ability cast by Rubble in the Kologarn encounter has had it’s damage decreased, will now be mitigated by armor, but can no longer be blocked, dodged, or parried.
  
• The Thunderfall Totem will no longer increase the casting time of Healing Wave or Lesser Healing Wave when Tidal Waves is active.
  
• Killing Anzu in Sethekk Halls will properly save you to the instance.

4/23/09

• Fear Ward will now properly be consumed whether a player is sitting or standing.
  
• The Rogue talent Savage Combat should now properly be removed after leaving an arena match.
  
• Greater Blessing of Wisdom and Mana Spring Totem will no longer stack as intended.
  
• The trash mobs before XT-002 Deconstructor have gone through additional changes that should make them a little easier to get through.
  
• The Ocular in Icecrown should be killable again using the quest item Eyesoar Blaster.
  
• The quests "Shatter the Shards" and "The Guardians of Corp'rethar” should be completable again whether or not you are involved in Argent Tournament quests.
  
• The trash mobs before Mimiron have gone through additional changes that should make them a little easier to get through.
  
• The Priest ability Serendipity is now properly consumed when a spell finishes casting and does not affect a second spell.
  
• Nature’s Swiftness should properly affect Rebirth.
  
• The damage of XT-002 Deconstructor’s Gravity Bomb ability has been reduced.

4/24/09

• Glyph of Overpower will now properly provide a 100% chance to enable Overpower after a parry.
  
• Ghostly Philantropists have gone broke and will now drop zero gold.
  
• Replenishment has been changed in Arenas: http://forums.worldofwarcraft.com/thread.html?topicId=16474152841&sid=1

Keep in mind that some of these changes my require the realm to be restarted to take effect.

4/28/09

• Pure Saronite mining nodes have temporarily been disabled in Ulduar and will return in the future.
  
• The effectiveness of the Priest spell Divine Hymn has been reduced.
  
• The Priest ability Soul Warding now only reduces the mana cost of Power Word: Shield by 15% instead of 30%. The tooltip for this spell will be updated at a later date.
  
• Glyph of Mass dispel will now reduce the cost of the spell by only 35%.
  
• The Emalon encounter has received the following changes: The total health of the Tempest Minions has been reduced and Emalon’s Chain Lightning spell will now have a limit on the number of targets it can hit.
  
• The Ignis the Furnace Master encounter has received the following changes: The interrupt effect and duration of the damage from Flame Jets has been reduced, the damage from the Slag pot has been reduced, the number of Heat stacks needed to transform an Iron Construct into a Molten state has been reduced, the base melee damage done by Ignis has been reduced, and the damage bonus Ignis receives from Strength of the Creator has been slightly increased.
  
• The Assault Bots on the Mimiron encounter will now attack faster, in turn they will do less damage per hit.
  
• Spring Flowers will not cast or go on cooldown if the target already has the buff.
  
• The XT-002 Deconstructor encounter has received the following changes: The duration of Tympanic Trantrum has been reduced, the timer for XT-002 to hit berserk has been increased, the damage of Light Bomb has been reduced, the effect radius of Light Bomb has been reduced, and the health of XM-024 Pummeler has been reduced.
  
• The aggro radius for several trash mobs before General Vezax has been reduced and the health has been reduced on Void Beasts and Faceless Horrors.
  
• The Kologarn encounter has received the following changes: The damage of Stone Grip has been reduced, the amount of time to break someone out from the right hand has been increased, the radius and damage of Rumble has been reduced, and the damage of Focused Eyebeam has been reduced.
  
• The Assembly of Iron encounter has received the following changes: The damage of Rune of Death has been reduced, the damage of Chain Lightning has been reduced, and the damage of Lightning Whirl has been reduced.

4/29/09

• Fixed an issue where Mimiron could randomly change targets while casting P3Wx2 Laser Barrage in phase 4. It is still possible for it to appear that he is turning quickly for an instant to shoot another direction, but this is just a visual bug that will be resolved in a future patch.
  
• The Auriaya encounter has received the following changes: the damage of Strength of the Pack has been increased, the duration of Terrifying Screech has been reduced, the damage of Sonic Screech has been reduced, and the damage from Seeping Feral Essence has been reduced.

4/30/09

• Mimiron should no longer continue to cast Heat Wave after phase 2 is completed.
  
• Players who are Champions of Exodar should now display the appropriate Exodar banner.
  
• The Pollinate spell cast by the Forest Swarmer inside of the Conservatory of Life in Ulduar should no longer be spell stealable.
  
• The Warlock ability Nether Protection will reduce spell damage by 30% instead of 60%.
  
• If a player loses their Orphan Whistle at any time during the in-game Children's Week event they can speak to a Matron in cities to receive a replacement.
  
• The NPCs in the Hodir encounter will now cast Storm Power and Toasty Fire more quickly after being freed from Flash Freeze at the start of the encounter. Toasty Fire will also be cast more consistently throughout the fight.
• Blind (Rogue) is now in the same diminishing returns category as Fear effects, but no longer shares diminishing returns with Cyclone (Druid).
  
• The Warlock ability Death Coil now heals you for 300% of the damage done, up from 100%.
  
• Mana Burn has been reduced to 10% mana burned (up to a maximum of 20% of the Priests mana), down from 13% (max 26%).
  
• Mana Burn now causes Fear, Hex and Psychic Scream to break early when used.
  
• Players can now obtain another orphan whistle from an orphan matron, even if they have completed all the associated orphan's quests.
  
• Fixed an issue with the achievement "Daily Chores," which prevented players from getting credit for daily quests if they had already completed dailies without their orphan present.
  

5/4/09

• The NPCs just inside the front entrance of Ulduar (like a repair ogre) should no longer despawn.
  
• The Druid Tier 8 Nightsong Battlegear 4 piece bonus should now properly extend the length of Savage Roar.
  
• The Auriaya encounter has received the following changes: The range of Savage Pounce has been slightly reduced, the impact and periodic damage has been reduced in Heroic difficulty, the Guardian Swarm ability now summons 10 Swarming Guardians instead of 25 but their individual damage has been increased.
  
• The reflected damage done by Elder Stonebark with his Petrified Bark ability has been significantly reduced.
  
• In the Hodir encounter, the time to complete the hard mode has been increased to 3 minutes. (This will be applied during maintenance beginning with North America on Tuesday May 5.)
  
• The health of the Heart of the Deconstructor in the XT-002 Deconstructor encounter has been reduced.
  
• In the Thorim encounter, the Iron Ring Guard’s Whirling Trip ability will now only hit the tank.
  
• In the Assembly of Iron encounter, the duration of Overwhelming Power has been increased to 30 seconds in heroic mode and the amount of healing that Steelbreaker receives from Electrical Charge has been reduced to 20% of his max health.
  
• The first pack of trash mobs in the Conservatory of Life has been removed, one of the trash packs in the General Vezax room has been removed, all of the humanoids in General Vezax’s room are no longer immune to stuns, the Faceless Horrors will only go immune and summon Void Beasts once instead of 3 times, and the damage done when a Clockwork Sapper explodes has been significantly reduced.

5/7/09

• The Impale ability used by the Iron Ring Guards in the Thorim encounter should now hit the player tanking them and only that player tanking them.
  
• The damage done by Swamplord Musel’ek’s Aimed Shot ability has been reduced and be more in line for players at the appropriate level to face him.
  
• We have corrected an issue with the two-piece set bonus for the Paladin set, Conqueror’s Aegis. Holy Mending no longer costs additional mana.
  
• We recently made a change to the sell value of Nerubian Legguards. The material costs used to create this item were unintentionally low, and we were prompted to make changes to minimize the impact on the game's economy.

5/13/09

• If a pet dies from Overwhelming Power on Steelbreaker in Ulduar, Steelbreaker will gain an Electrical Charge.
  
• The Doomguard’s ability Cripple now reduces ranged and melee attack speed by 20% instead of 45%. Cripple's slowing effect does not stack with other slowing effects such as Thunderclap and Infected Wounds.
  
• Thorim's Unbalancing Strike ability will now be used at more consistent intervals.

5/14/09

• The chance for the Lightning Overload talent to be triggered is being increased from 7/13/20% to 11/22/33%.
  
• We have decreased or removed the stealth detection from numerous items. Please visit this link for more information: http://forums.worldofwarcraft.com/thread.html?topicId=17163476972&sid=1
  
• Wild Growth can no longer proc Revitalize if you don’t have talent points spent in Revitalize.
  
• In the Yogg Saron encounter, Paladin Judgement spells will no longer cause diminish power from Crusher Tentacles to cease channeling.
  
• The vehicles in the Flame Leviathon encounter will now respawn faster.
  
• Hodir will no longer shatter his Rare Cache of Winter if defeated while casting a spell, like Flash Freeze.

5/15/09

• The Glyph of Icebound Fortitude now increases the minimum damage reduction of Icebound Fortitude to 30% as intended.