The World of Wracraft servers are currently down to add in the new 7.1 update that will let players Return to Karazhan as a mythic dungeon, tackle three bosses in the Trail of valor as a raid, and continue the Suramar story line leading to a new raid in nine weeks.

In addition to all the new content, Blizzard has also done a sweep of the various classes, professions and game mechanics for balances and fixes. Here are just the class changes:

Death Knight

• Blood
  • Icebound Fortitude has returned, reducing damage taken by the Death Knight by 30% (remains at 20% for Frost Death Knights).
• Frost
  • Frozen Pulse now triggers if you have fewer than 2 full Runes (was 1).
  • Frozen Pulse damage reduced to 60% of Attack Power (was 72%).
  • Glacial Advance now hits targets in melee range more reliably.
  • Razorice now increases Frost damage by 3% per stack (was 2%).
  • Obliterate damage increased by 20%.
  • Howling Blast damage increased by 50%.
• Unholy
  • Death Coil damage increased by 50%.

Demon Hunter

• Agonizing Flames damage bonus to Immolation Aura reduced to 30% (was 50%).
• Felblade is now usable against targets in melee range even if the Demon Hunter is rooted.
• Distance from which Soul Fragments can be used for Soul Cleave, Soul Barrier, and Spirit Bomb has been increased to 25 yards (was 20 yards).
• Demon Blades will now trigger while on the global cooldown (was delayed until after the GCD). This is not a gain to throughput.
• Spirit Bomb healing from damage increased to 15% (was 10%).
• Soul Barrier now lasts 12 seconds (was 8 seconds).
• Abilities learned have been spaced out:
  • Sigil of Silence – Level 101
  • Empower Wards – Level 103
  • Sigil of Misery – Level 105

Druid

• Mastery: Harmony now includes Frenzied Regeneration.
• Ysera's Gift will only heal party or raid members.
• Living Seed now copies 25% of the crit heal (was 50%).
• Seeds of the World Tree now increases that amount by 8%/point (was 10%).
• Owlkin Frenzy will now only affect Lunar Strike (and not Solar Wrath or Stellar Flare).
• Swiftmend healing increased to 770% of Spell Power (was 700%).
• (Balance, Guardian, Feral) Druids how have Regrowth in place of Healing Touch.
  • Regrowth is castable in Moonkin Form.
  • Talents, artifact traits, and legendaries have been updated to affect Regrowth where appropriate.
  • (Restoration) Regrowth has 40% additional chance to crit (was 60%).
• Activating Incarnation no longer triggers a global cooldown for any spec.
• Incarnation: Chosen of Elune once again provides the armored Moonkin model.
• Galactic Guardian:
• Now causes Moonfire to generate 10 Rage (was 15).
• Now increases its direct damage by 300%.
• Now has a spell alert.
• Restoration
  • Prosperity now reduces your Swiftmend cooldown by 3 seconds (was 5 seconds).
  • Cultivation healing increased by 20%.

Hunter

• Track Mechanicals granted to all gnome and goblin hunters, as well as any hunter who uses the Mecha-Bond Imprint Matrix.
• Posthaste now lasts 5 seconds (was 8 seconds).
• Vulnerable now increases damage by 50% (was 25%), stacking up to 2 times (was 3 times).
• New Hunter talent (replacing Dash):
  • Trailblazer: Your movement speed is increased by 25% anytime you have not attacked for 3 seconds.
• Survival
  • Raptor Strike damage increased by 100%.
  • Carve damage increased by 150%.
  • Butchery damage increased by 35%.
  • Throwing Axes damage increased by 25%.
  • Animal Instincts has been redesigned: Flanking Strike now also reduces the remaining cooldown of a random one of the following abilities:
  • Flanking Strike
  • Mongoose Bite
  • Aspect of the Eagle
  • Harpoon

Mage

• Arcane
  • Arcane Blast damage increased by 17%.
  • Arcane Missles damage increased by 17%.
  • Arcane Orb damage increased by 17%.
  • Arcane Charges now increase mana costs by 125% (was 100%).
• Fire
  • Pyroblast damage reduced by 6%.
  • Flamestrike damage increased by 15%.
  • Aftershocks damage increased by 15%.
• Frost
  • Brain Freeze now also increases the damage of your next Flurry by 50%.
  • Waterbolt damage increased by 25%.
  • Water Jet damage increased by 100%.
  • Lonely Winter now increases the damage of affected spells by 25% (was 20%).
  • Flurry damage increased by 5%.
  • Ice Lance damage increased by 5%.
  • Frostbolt damage increased by 5%.
  • Ray of Frost damage increased by 5%.
  • Frost Bomb damage increased by 5%.
  • Comet Storm damage increased by 5%.
  • Ebonbolt damage increased by 5%.
  • Frozen Orb damage increased by 5%.
  • Blizzard damage increased by 10%.

Monk

• Effuse now heals for 250% of attack power (was 200%).
• (Windwalker, Brewmaster) Crackling Jade Lightning now costs 20 Energy, plus 20 Energy per second.
• Brewmaster
  • Brewmaster Monks now gain 15% additional Armor from gear.
  • Brew-Stache now lasts 4.5 seconds (was 1.5 seconds).
• Mistweaver
• Sheilun's Gift now activates Soothing Mist.
• Chi-Ji Crane Heal now heals for 135% of spell power (was 150%).
• Soothing Mist now heals for 64% of spell power per tick (was 55%).

Paladin

• Retribution Aura no longer ignores tanks (including self).
• Flash of Light now heals 450% of spell power (was 425%) and costs 18% of base mana (was 16%).
• Holy
• The Rule of Law talent now increases the radius of Tyr’s Deliverance by 50%.
• Light’s Hammer now costs 35% of base mana (was 40%).
• Sanctified Wrath now extends Avenging Wrath by 5 seconds (was 10 seconds).
• Retribution
• Holy Wrath now deals 200% of your missing health in damage to 4 nearby enemies, up to 120% of your maximum health.
• Blade of Wrath has been redesigned: (Passive) Your auto attacks have a chance to reset the cooldown of Blade of Justice.
• Protection
• First Avenger: Avenger’s Shield now add +50% damage to the first target, and +10% Grand Crusader proc chance.
• Bastion of Light now has a 2-minute cooldown (was 3 minutes).
• Crusader’s Judgment now has 2 charges, and Grand Crusader now also grants a charge of Judgment.

Priest

• Mindbender now returns 0.5% of your mana per tick (was 0.75%).
• Discipline
• Power Word: Solace now returns 1% of your mana per tick (was 0.75%).
• Clarity of Will’s cast time is now 2.0 seconds (was 2.5 seconds).
• Contrition now increases Atonement by 3 seconds (was 2 seconds).
• Holy
• Renew healing increased to 62% of spell power (was 55%).
• Desperate Prayer now heals and increases health by 30% (was 20%).
• Divinity now lasts 6 seconds (was 8 seconds).
• Heal now heals for 500% of spell power (was 475%).
• Prayer of Mending now heals for 175% of spell power (was 150%).
• Prayer of Mending now avoids jumping to targets that already have Prayer of Mending, if possible.
• Binding Heal now costs 2.5% of mana (was 3.0%).
• Holy Fire damage increased to 200% of spell power (was 150%).
• Shadow
• Arcane Torrent now generates 15 Insanity.
• Power Word: Shield cost increased by 51%.
• Shadowform has returned as a new spell for Shadow Priests:
  • Assume a Shadowform, increasing your Shadow damage dealt by 10%, and reducing your Physical damage taken by 10%.
  • You may not cast any Holy spells while in this form.
  • The shadowy visual is now tied to Shadowform.
  • Voidform now acts to intensify Shadowform. It automatically triggers Shadowform if not already active, and you gain the effects of both.
  • When Voidform ends, you return to Shadowform.
  • The damage of all Shadow Priest abilities has been reduced to compensate for this, resulting in no net gain or loss of damage.

Rogue

• Kingsbane now generates 1 combo point.
• Hemorrhage, Marked for Death, and Ghostly Strike show up on the caster's nameplates.
• The cast time for all Assassination poisons has been reduced to 1.5 seconds (was 3 seconds).
• Outlaw
  • Saber Slash damage increased by 10%.
  • Pistol Shot damage increased by 10%.
  • Ghostly Strike damage increased by 10%.
  • Blunderbuss damage increased by 10%.

Shaman

• Fire Elemental, Earth Elemental, and Feral Spirits now all have totem timers.
• Earthquake Totem has been renamed to Earthquake and no longer summons a totem.
• Torrent now provides a 30% bonus to Riptide’s initial heal (was 40%).
• Elemental
  • Earth Shock damage increased by 15%.
  • Frost Shock damage increased by 15%.
  • Stormkeeper now also makes the affected Lightning Bolts and Chain Lightning instant.
  • Stormkeeper now has a 1.5 second cast time.

Warlock

• Demon Skin and Demonic Circle have swapped talent locations.
• Devour Magic has returned for Felhunters.
• Doomguard’s Doom Bolts damage increased by 13%.
• Affliction
  • Unstable Affliction now afflicts a target with up to 5 Unstable Afflictions at once.
  • Compounding Horror trait redesigned: its buff causes your next Unstable Affliction to deal (32% Spell Power) Shadow damage instantly, stacking up to 5 times.
  • Soul Effigy is now immune to AOE damage.
  • Agony damage increased by 5%.
  • Unstable Affliction damage increased by 5%.
  • Siphon Life damage increased by 5%.
  • Drain Life damage increased by 5%.
  • Drain Soul damage increased.
  • Phantom Singularity damage increased by 5%.
  • Corruption damage increased by 10%.
• Demonology
  • Demonwrath now generates Soul Shards more consistently.
  • Demonic Empowerment now increases health by 20% (was 50%).
  • Thal’kiel’s consumption deals damage equal to 8% of pet health (from 6%).

Warrior

• Inspiring Presence now affects party and raid members only.
• Hamstring is now on the global cooldown, and can once again trigger Tactician.
• Bladestorm damage increased by 8% for all specs.
• Fury
  • Raging Blow damage increased by 8%.
  • Rampage damage increased by 8%.
  • Execute damage increased by 8%.
  • Bloodthirst damage increased by 8%.
  • Odyn’s Fury damage increased by 8%.
  • Furious Slash damage increased by 8%.
  • Dragon Roar damage increased by 8%.
  • Ravager damage increased by 8%.
  • Enrage now increases damage taken by 20% (was 30%).
• Warpaint now modifies the Enrage damage taken increase to 15%.

For all the other changes, check out the full patch notes.