Patch 4.2.2 Official Notes

World of Warcraft: Cataclysm patch 4.2.2 is now available on all realms! Below you'll find the official patch notes.
Notes for all World of Warcraft patches can be found here.
Table of Contents
- Dungeons & Raids
- User Interface
- Technical
Dungeons & Raids
- Firelands
- The visibility of Ragnaros' Dreadflame ability has been increased.
- The size of Ragnaros' hit box during the final phase of the Heroic encounter has been increased.
User Interface
- Raid Frames should now remember whether they were shown or hidden upon subsequent logins
Technical
- Players using multiple accounts should now be available to be invited to a Real ID Party.
- Updating a raid roster while in combat should no longer cause a client crash.
- Attempts to purchase Arena Season 10 items should no longer sometimes cause a client crash. (Korea Only)

Wyrmrest Accord
Kilrogg
Blackhand
Shu'halo
Magtheridon
Dreadmaul
Gundrak
Scarlet Crusade
Scarlet Crusade
Darrowmere
Llane
Darkspear
Hydraxis
Dragonmaw
Dreadmaul
Cenarion Circle
Lightninghoof
Whisperwind
Thaurissan
Jaedenar
Emerald Dream
....../ `---___________----_____] - - - - - - - - ░ ▒▓▓█D
...../_==o;;;;;;;;_______.:/
.....), ---.(_(__) /
....// (..) ), ----"
...//___//
..//___//
.//___//
Emerald Dream
Fizzcrank
Sen'jin
Thunderhorn
Galakrond
Arthas
Arthas
Jaedenar
Galakrond
Jaedenar
Uldum
....................................,.-‘”...................``~.,
.............................,.-”...................................“-.,
.........................,/...............................................”:,
.....................,?......................................................\,
.................../...........................................................,}
................./......................................................,:`^`..}
.............../...................................................,:”........./
..............?.....__.........................................:`.........../
............./__.(.....“~-,_..............................,:`........../
.........../(_....”~,_........“~,_....................,:`........_/
..........{.._$;_......”=,_.......“-,_.......,.-~-,},.~”;/....}
...........((.....*~_.......”=-._......“;,,./`..../”............../
...,,,___.\`~,......“~.,....................`.....}............../
............(....`=-,,.......`........................(......;_,,-”
............/.`~,......`-...............................\....../\
.............\`~.*-,.....................................|,./.....\,__
,,_..........}.>-._\...................................|..............`=~-,
.....`=~-,_\_......`\,.................................\
...................`=~-,,.\,...............................\
................................`:,,...........................`\..............__
.....................................`=-,...................,%`>--==``
........................................_\..........._,-%.......`\
...................................,<`.._|_,-&``................`\
Rivendare
Fenris
Icecrown
Grizzly Hills
Eitrigg
Gul'dan
Bloodscalp