There have been plenty of patches -- 24, to be precise -- since the game launched in late 2004. And if you've been playing for any length of time -- or since the beginning -- chances are that you have a favorite patch amongst them. Perhaps it was a new dungeon, a world event, or just a class change that made your character, for a time, feel godly.
For me, it was definitely patch 1.9, when I was dedicating the time to be part of a serious raiding guild and got to take part in the incredible quest line that led to opening of the Gates of Ahn'Qiraj (and, coincidentally, around when I first started writing for WoW Insider). Looking back, there was as much bad as there was good -- long hours raiding that I couldn't find time for if I tried today, the tedious task of collecting linen and peacebloom to fuel the Ahn'Qiraj war efforts, and intense guild rivalry over who would complete the quest first -- but it was definitely a memorable time in my WoW-playing life.
So what about you, readers? Which patch do you look back on fondly and why?