New background music for many old-world zones has been added.
Experience required to advance between level 84 and 85 has been increased from what it was in beta.
Numerous treasure chests have changed names and chests that were small are now the more basic size. Some players are unable to open chests in certain areas at this time.[1]
Newly created characters now automatically get the following flight points:
In Kalimdor: Orgrimmar, Razor Hill, Sen'jin Village, Thunder Bluff, Bloodhoof Village
In Eastern Kingdoms: Undercity, Brill, The Bulwark, Silvermoon City, Falconwing Square, Fairbreeze Village
Characters no longer need to 'discover' flight points on their own. Characters receive undiscovered flight points zone-by-zone on reaching suitable character levels.
PvP[]
Vehicles in Wintergrasp no longer have tiered speeds (siege engines move as fast as catapults) and are now subject to snares and roots. It is unknown whether this is intended behavior or not.
Achievements[]
Quest achievements for old world zones are now split by zone, the way it is done for Outland and Northrend.
Universal Explorer now requires Cataclysm Explorer. As such, it is currently impossible to complete before the release of the Cataclysm expansion. However, players who obtained this achievement before the patch keep it even without exploring Cataclysm zones.
All dungeon and raid achievements are now categorized based on expansion rather than instance.
The achievements For The Alliance! and For The Horde! have been updated with the changes in leadership for the orcs, tauren and dwarves. Player who completed the achieves before this patch have been credited with these new leaders automatically.
Harrison Jones, Archaeology Trainer, has taken up residence in the Royal Library, though does not offer any training yet. Dariness the Learned also resides in Dalaran.
Cloth Quartermasters have disappeared from the major cities, in their place are new faction Quartermasters.
New bankers in Dwarven quarter of Stormwind are Jamie, Lee, and Curtis Crester; Leslie, Ann, and Warren Wainwright; and Fineas G. Bankworthy.
New bankers in the Trade District of Stormwind are Kirsten, Scott and Thomas Westmill, and Kristin Cazarez.
City guards are now level 85, up from 75.
Guards in starting areas are now level 90 (Elite) up from 75.
Wisps can now hover above the ground and circle buildings and trees.
Experience gained from gathering herbs has been increased.
Inscription[]
Low-level inks can no longer be traded for [Ink of the Sea] but now for [Blackfallow Ink]. However, since the ingredients for this ink aren't available before the release of Cataclysm, low-level inks can't be traded right now.
Smart mount macros are broken because all of Azeroth is now marked as flyable, although it is not yet possible to purchase [Flight Master's License].
Some, but not all, flying mounts are now usable in Azeroth as land mounts - this seems to be mostly crafted mounts such as Tailor-made flying carpets and Engineer-made flying machines. The mount operates only as a land mount, unless in water, where you will be unmounted like on a flying mount.
Is it possible to mount up and fly on a flying mount when swimming at the surface of water.
Due to added mud and silt to the StormwindCanals, making them much more shallow, they can be ridden in as though they are land when using larger mounts such as mammoths.
Skinning[]
Some mobs, such as Cyanigosa require more than 450 skinning, this is a known bug.
Numerous keys were removed as they are no longer necessary. Some may be retrieved from a Locksmith or their respective NPCs but will auto-delete again after some time.
[Disgusting Jar] now takes only 3 days to turn into a ripe disgusting jar.
[Wildfire Cape] now has 6 Stamina, 6 Intellect, and 14 critical strike rating rather than 20 Fire Resistance.
Gilneas reputation from the Worgen of Gilneas available to the Alliance.
Bilgewater Cartel reputation from the Goblins of Kezan available to the Horde.
Timbermaw Hold reputation gains have been greatly increased.
Argent Dawn reputation is no longer available from Eastern Plaguelands quests and mobs. Instead there is a quest chain at Light's Hope Chapel that leads you to Fiona.[3] This leads you to a repeatable quest.
Character creation screens for gnomes and trolls have been updated with new backgrounds, featuring the Gnomeregan surface and Echo Isles respectively.
The Azeroth world map, maps of Kalimdor and the Eastern Kingdoms, and most old-world zone maps have been updated for the Cataclysm changes, and now feature a different visual style reminiscent of TBC/Wrath maps.
The PvP interface has been updated to support rated battlegrounds. It also allows creating an arena team without visiting an arena master.
Quests with a main antagonist now has a box displaying the picture and a short paragraph about them.
For these quests, the main antagonist's portrait will show a yellow between the name and portrait.
Also for these quests, the antagonist's location will be shown as a skull on the mini-map, white if outside and you're outside, gray if you're outside and the antagonist is inside.
Hunter pets now have their family listed in the tooltip (for example, Level 49 Moth).
Classic dungeon and raids (those still remaining after the Shattering) now have instance maps.
Upper Blackrock Spire is now listed in the Dungeon Finder rather than the Raid Browser.
Quests[]
Classic dungeons now have quest givers inside the entrance.
[25-30G5] Basic Chemistry and [25-30G5] Neutralizing the Plague can now be done by a single player as the quest item's cooldown has been reduced to 30 seconds (was 90 seconds).
The quest [25-30 Daily] Get Kraken! now requires 8 hits on the kraken and 6 Deepcallers slain (was 6 and 3 respectively). The [Kraken Tooth] from killing the kraken can also be obtained once again (was unavailable in 4.0.3).
The quest to activate the frost trap in Dire Maul North no longer requires any items.
Quests relating to the level 60 version of Naxxramas (previously the quests not requiring Frozen Runes could still be completed in the level 80 version).
The Battle for the Undercity quests after the Wrathgate event.
Note: With the world revamp, a vast number of quests in old-world zones was removed, far too numerous to list here. They can be found in Category:Removed in patch 4.0.3a.