A huge amount of hotfixes have arrived for Wrath Classic, with a M+ fix for retail as well.
September 27 (Source)
Dungeons and Raids
Fixed several issues where Quaking could damage players in cases where they were unable to react.
Wrath of the Lich King Classic
The maximum amount of in-game currency that can be transferred to another realm is now 500g for player-characters at levels 10-30, 2,500g at levels 31-50, and 25,000g at level 51 or higher.
Players who enter a battleground while mounted on a flying mount or while shapeshifted into Flight Form will now return to their flying mount or shapeshift form upon exiting the battleground.
Fixed an issue where skill level requirements were not enforced when casting the Skinning spell from your spell book.
Fixed an issue causing Wartook Iceborn to sometimes disappear during the quest “Across Transborea.”
Fixed an issue in “The Battle for Undercity” where King Varian Wrynn was attacking an NPC that should not be part of the event.
Fixed an issue with the quest “Mission: Plague This!” where Greer Orehammer would not offer another flight to players who already had Orehammer’s Precious Bombs in their inventory.
Fixed an issue with “The Last Rites” quest where a player could cause Thassarian to become stuck under certain conditions.
The Dark Iron Brewer in Blackrock Depths will now correctly drop his Mug of Dire Brew when sufficiently drunk. Bottoms up!
Nightbane no longer requires completion of the associated questline and can now be summoned by any player using the Blackened Urn object on the balcony.
Grauf should no longer regenerate to full health when flying off if it is not killed within a single pass during the Skadi the Ruthless encounter.
Slad’ran should now appropriately stop summoning snakes upon death.