Blizzard's hotfix notes for WoW Forever cover 5, 6 and 9 November. The biggest changes: 50% more experience from dungeon enemies, fewer players in crowded zones, two dungeons made easier, and a long list of class and quest fixes. Below are the ones most players will notice, in our own words. Blizzard's post has every line.

The big ones

  • Dungeon XP up 50%. Enemies in dungeons give half again as much experience. Kaivax first posted it on 8 November. See is dungeon leveling worth it.
  • Fewer players in crowded zones. Blizzard lowered how many players share a zone where it was badly congested. See layering and empty or crowded worlds.
  • The Drowned City had enemies dealing about 30% more damage than intended. Fixed.
  • Deathless Marrow got easier: enemy health down 25%, Sorcerer Fireball down 25%, Watcher Charge down 50%, and Guardians use Shield Slam about half as often.

Classes

  • Druid: Feral Charge in Cat Form puts you in combat at once, Natural Instinct now covers Lacerate and Pounce, and the Idol of Ferocity no longer discounts Mangle.
  • Hunter: some pet families were corrected, and Hunters no longer pull distant enemies just by targeting them.
  • Mage: Flamestrike's ground damage no longer eats Clearcasting, and Arcane Blast lasts 18 seconds as intended.
  • Paladin: Consecration's bonus no longer stops when a target despawns.
  • Priest: Fear Ward no longer knocks you out of Shadowform, and Power Infusion stays on your ally.
  • Shaman: Lightning Overload's Lightning Bolt damage was corrected.
  • Warlock: Voidwalker base health went up, Soul Siphon no longer lets Wrack boost itself, Incinerate is Destruction-only, and the Felsteed quest now gives riding skill properly.
  • Cooldown Manager: crowd control durations are now accurate, and several class cooldowns display correctly.

Dungeons

  • Alcaz Prison: Zarla Ober drops loot.
  • Blackrock Depths: the throne room doors open again after a wipe on Emperor Thaurissan.
  • The Shaper's Terrace: Vitrix, Snowtalon and Cinder drop the right loot.
  • Stratholme: you can't mount up inside any more.
  • Maraudon: Zaetar's Spirit appears after Princess Theradras.
  • Waylaid Crates and Craftsman's Writs now drop in dungeons.

Quests and the world

  • Several quest items are now shared with the whole party, including "The Monster Surfaces", "Croaky's Head" and "Elmpaw's Head".
  • The "Vorsha the Lasher" quest no longer causes trouble for the whole zone.
  • The Pouch of Violet Dust's extra hour of camp benefits works now. See the Twitch drop.
  • Professions: the Tanning Rack now needs 125 skill instead of 140.
  • PvP: Plainsrunning no longer stacks during battleground preparation, and an invisible wall on the Warsong Gulch Alliance roof is gone.

Next came the 10 November class changes, now live. For problems Blizzard hasn't fixed yet, see known issues and hotfixes.