Wrath Classic gets more hotfixes, with retail receiving a small one as well.
September 29 (Source)
Items and Rewards
The Forgotten Proto-Vault in Zereth Mortis no longer requires the World Quest “Frog’it” to appear.
Wrath of the Lich King Classic
Zidormi will now reliably allow players to enter or leave the Battle for The Undercity. If you have haven’t started the Battle for The Undercity questlines, you must complete the following quests to enter:
Horde – “Darkness Stirs”
Alliance – “Return to Angrathar”
Fixed an issue preventing Heirlooms, Tome of Cold Weather Flying, Northrend Faction Helm Enchant Arcanums, and Sons of Hodir Shoulder Inscriptions from being transferable to other WoW accounts.
Brassbolt Mechawrench and Reginald Arcfire have returned to Dalaran to offer their Auction House services for Grand Master Engineers.
The Master Summoner’s Staff quest item for “Destroying the Altars” has been increased to 100%.
Fixed an issue with “The Slumbering King” where Queen Angerboda could fail to respawn after being defeated under specific circumstances.
Fixed an issue where players could disconnect when jumping in the pool after battling The Prophet Tharon’ja in Drak’Tharon Keep.