About time to know the Secret of Ulduar

Attention
please! It’s time to learn the Secrets of Ulduar in the snowy regions of Storm
Peaks! A few new things been released for this patch and the most notable Dual
Spec. How this lovely ability works is when you are at level 40 you will be
able to purchase Dual Spec for 1000g and it will allow you to switch between 2
different specs, glyphs and action bars. Now I could go on and list more
changes like UI Improvement, The Argent Tournament. But I figured you would want
to read the official patch notes instead. *Note* this is a bit long*Note* http://www.worldofwarcraft.com/patchnotes/

Secrets of Ulduar

• Since discovering Ulduar in the Storm Peaks,
  adventurers have journeyed to the titan city to learn more about its
  mysterious past. Further exploration has revealed that the magnificent
  complex is above all a prison, intended to permanently confine the Old God
  of death, Yogg-Saron. This ancient horror has corrupted its guards, and
  now it is breaking through the last of its restraints. Faced with the
  peril of Yogg-Saron’s imminent freedom, a band of mortals has made preparations
  for a sweeping assault on the city. Overcoming the legions of iron minions
  and towering defenses at the city’s entrance will take tremendous
  strength, but even that great victory may not be enough to overcome the
  madness that dwells below.

The Argent Tournament Begins!

• As the might of the Scourge wanes under the pressure of
  Azeroth’s heroes, the Argent Crusade have taken a foothold in Arthas’s
  back yard. Off the northeastern coast of Icecrown, the Argent Crusade have
  sounded the call for the most bold and brave adventurers of the Horde and
  Alliance to take part in the Argent Tournament. Representatives of all ten
  faction capitals, from Undercity to Exodar, have traveled to the
  tournament grounds to find champions among their heroes who will prepare
  for the inevitable battle against the enemy of all living beings, the Lich
  King.

In Memoriam: Dave Arneson

• Blizzard Entertainment would like to dedicate Secrets
  of Ulduar in memory of Dave Arneson. We were greatly saddened by the news
  of Dave’s passing. His work, passion, and creativity helped give life to
  an entirely new genre of gaming, and our fondest memories of playing
  Dungeons&Dragons continue to inspire us. Farewell, Dave, and thank
  you. You will be missed.

General

• Due to significant talent tree revisions, all players
  will have their talent points reimbursed. Several new spells and abilities
  have been added for select classes. Players will need to visit their class
  trainer to learn new spells.
• All Ground Mounts may now swim without dismounting the
  rider. Flying Mounts still may NOT, and will dismount the rider upon
  entering water.
• The Argent Tournament, a permanent in-game event, has
  come to Icecrown. Players interested in taking part in this event should
  visit the Argent Pavilion located on the west side of the tournament
  grounds. Features include:
• New ways of gaining reputation with capital cities.
• All new daily quests, achievements and titles.
• New rare and epic items, tabards, pets, banners,
  faction shirts and mounts.
• Mounted combat, and much more to come!
• Players level 40 and higher will now be able to visit
  their trainer to pay a one-time fee and access the dual talent
  specialization feature.
• The achievement Brew of the Year has been removed from
  the Brewmaster meta-achievement. The achievement Brew of the Month has
  been added in its place.
• Noblegarden has been redesigned into a week-long
  holiday with new items, quests, and more. Various achievements have been
  added, including the meta-achievement Noble Gardener, which is now
  required for the meta-achievement What A Long, Strange Trip It’s Been.
• Applying a glyph no longer requires a Lexicon of Power.
  The same rules for switching between dual talent specializations now apply
  to switching glyphs and cannot be performed while in combat, Battlegrounds
  (except when Preparation is up), or Arenas (no exceptions).
• New music can be heard at the Argent Tournament grounds
  and in Ulduar.

PvP

• Arenas
• Enemy Unit Frames: This feature is only available
  while in Arenas, with several options in the Interface Options.
• Battlegrounds
• Battleground quests “Concerted Efforts” (Alliance) and
  “For Great Honor” (Horde) now require an Alterac Valley Mark of Honor in addition
  to the current requirements. These quests now award more honor upon
  completion.
• Players will now be able to queue for battlegrounds
  from any location. Leaving a battleground will return you to the location
  from which you entered.
• Alterac Valley
• Drek’Thar, Vanndar Stormpike, the tower Heralds and
  Warmasters have received a hit point and damage upgrade in the level 80
  version of Alterac Valley.
• Strand of the Ancients
• Capturing the Southern Graveyard will now
  automatically capture both the East and West Graveyards.
• Seaforium Barrels can now be looted while mounted,
  seen from anywhere in the zone, and found at the Central Graveyard.
• Teleporters can now be used while mounted and can now
  be seen from anywhere in the zone.
• Lake Wintergrasp
• Daily quests “Slay Them All!” (Horde) and “No Mercy
  for the Merciless” (Alliance) have had their PvP kill requirements
  reduced to 10 from 20. NPCs defending the fortress and south towers now
  count toward these dailies as well.
• The number of NPCs defending fortress has been
  increased.
• Siege Engines now have Steam Pressure as a resource
  type (replaces energy).
• The southern Siege Factories can be captured.
• The time between battles will be saved should a realm
  shut down. If Wintergrasp is active when a realm shuts down, the battle
  will restart from the beginning when the realm is once again live.
• Towers in Southern Wintergrasp now have more defensive
  cannons.

Races: General

• Command (Orc Racial): Applies to shaman pets, and now
  correctly applies to death knight pets.
• Gift of the Naaru (Draenei Racial): The heal has been
  changed to an instant-cast heal-over-time.
• Stoneform (Dwarf Racial): No longer makes you immune to
  poison, disease and bleed effects for 8 seconds. Instead, using Stoneform
  will clear those effects when cast. Cooldown reduced to 2 minutes from 3
  minutes.

Classes: General

• Armor Penetration Rating: All classes now receive 25%
  more benefit from Armor Penetration Rating.
• The damage threshold for Fear, Psychic Scream, Hex,
  Intimidating Shout, and Turn Evil to break early has been significantly
  reduced.
• Haste Rating: shamans, paladins, druids, and death
  knights now receive 30% more melee haste from Haste Rating.
• Hysteria, Tricks of the Trade, Enrage, Wrecking Crew,
  Death Wish, Arcane Power, Owlkin Frenzy, Beast Within, and Avenging Wrath
  damage bonuses no longer stack together.
• Mana Regeneration: The amount of mana regeneration
  derived from intellect and spirit has been reduced by 40%; however,
  talents that allow for mana regeneration while in combat have been
  increased. As a result, in-combat regeneration for classes with those
  talents will stay the same, while out-of-combat regeneration will be
  lower.
• The shaman’s Fire Elemental and Spirit Wolves, mage’s
  Water Elemental and Mirror Images, and druid’s Treants have all gained
  avoidance from area-of-effect damage similar to what warlock and hunter
  pets already have.
• Taunts: All player or pet-generated taunts now have a
  shared diminish category. In addition, Taunt-type effects from pets and
  from classes other than death knight, druid, paladin, and warrior have
  been set such that bosses can be made immune to them while still affected
  by death knight, druid, paladin, and warrior taunts.

Death Knights

• Anti-magic Shell: The amount of damage this ability can
  absorb is now limited to 50% of the death knight’s health.
• Blood Boil’s damage increased to make up for Pestilence
  no longer doing damage.
• Blood Boil now does some damage to undiseased targets
  and extra damage to diseased targets. Its damage radius has been decreased
  to 10 yards.
• Blood Plague: Now lasts 15 seconds untalented.
• Blood Strike: Bonus damage for diseases is now a
  multiplier rather than a flat bonus.
• Death Pact: This heal cannot be critical.
• Death Strike: The amount of healing per damage done has
  been reduced by 20%. Now deals 75% weapon damage, up from 60%.
• Frost Fever: Now lasts 15 seconds untalented.
• Frost Presence: Now grants 5% damage reduction instead
  of 15% magic damage reduction.
• Obliterate: Bonus damage for diseases now increases
  damage done by a percentage rather than a flat amount.
• Pestilence does no damage and has only 1 rank.
• Plague Strike and Blood Plague no longer remove
  heal-over-time effects. Plague Strike’s damage increased quite a bit to
  compensate.
• Raise Ally now has a cooldown greater than 15 minutes
  and can no longer be used in Arenas.
• Raise Dead: Duration lowered to 60 seconds and cooldown
  lowered to 3 minutes. The cooldown on this ability now begins when the pet
  dies rather than when it is summoned.
• Rune of Cinderglacier now procs per minute instead of a
  5% chance.
• Rune of the Fallen Crusader: This weapon enchant now
  provides only 15% strength, but its chance to proc is doubled.
• Rune of Razorice now affects Frost damage done by the
  death knight only, but stacks up to 10%.
• Strangulate no longer does damage and has been reduced
  to 1 rank.
• Talents
• Blood
• Abomination’s Might: This effect can now also be
  caused by Death Strike.
• Blade Barrier: Now grants 1/2/3/4/5% damage reduction
  instead of 2/4/6/8/10% parry.
• Blood Aura: Replaced with Improved Blood Presence.
  This allows the death knight to keep the healing-from-damage-done bonus
  of Blood Presence in any presence, and increases healing received while
  in Blood Presence.
• Blood-Gorged now grants armor penetration instead of
  expertise.
• Bloody Strikes: The bonus damage this talent grants
  to Blood Boil has been reduced to 10/20/30%.
• Bloodworms now heal more.
• Dancing Rune Weapon: Damage done by, and duration of
  this pet is reduced by 50%, but the cooldown is reduced to 90 seconds.
  Attack speed of pet increased from 2.0 to 3.5.
• New talent: Improved Death Strike: Increases Death
  Strike damage by 10/20%, and critical strike chance by 3/6%.
• Heart Strike: Bonus damage for diseases is now a
  multiplier rather than a flat bonus. No longer affected by Glyph of
  Blood Strike.
• Hysteria: This ability now causes the target to lose
  health rather than take damage.
• Might of Mograine: No longer affects Obliterate.
• Scent of Blood: Will now proc on a dodge, parry or
  when taking damage, and now grants 10 runic power per charge. Internal
  cooldown removed.
• Spell Deflection: This talent has been increased to
  15/30/45% damage reduction from a direct damage spell.
• Sudden Doom now procs a free Death Coil instead of
  requiring you to push the button. Ranks reduced from 5 to 3.
• Vampiric Blood: Cooldown increased to 2 minutes from
  1 minute.
• Will of the Necropolis: This ability now has a 15
  second cooldown on how often it can occur. No longer triggers from
  damage amounts less than 5% of the player’s health.
• Frost
• The following talents have moved in the Frost tree:
  Runic Power Mastery, Glacier Rot, Killing Machine, Chilblains, and
  Endless Winter.
• Black Ice: This talent now provides a 2/4/6/8/10%
  bonus to Frost and Shadow damage instead of 4/8/12/16/20% to Frost.
• Blood of the North: Now also increases damage dealt
  by Frost Strike by 3/6/9/12/15%.
• Chillblains: Now a 15/30/50% movement speed debuff up
  from 30%. Can no longer be dispelled.
• Frost Aura: Replaced with Improved Frost Presence.
  Allows the deathknight to keep the health bonus of Frost Presence in any
  presence, and decreases magic damage taken while in Frost Presence.
• Glacier Rot: 3rd rank added, and damage bonus
  increased to 7/13/20%.
• Howling Blast: Base damage and scaling doubled. This
  ability no longer deals bonus damage to targets with Frost Fever.
  8-second cooldown. Swapped positions with Hungering Cold in the talent
  tree.