XCOM: Enemy Unknown Patch #3 Released, Brings Second Wave

2K Games and Firaxis have just released the newest update to XCOM: Enemy Unknown, their recent (and highly successful) turn-based strategy/RPG title. This patch brings a new feature in the form of the anticipated "Second Wave" mode, which was scheduled for the game's release but held back due to time constraints.

Here are the full update notes:
Second Wave addition
If a player has beaten the game, they can access a variety of gameplay toggles upon starting a new game. The Second Wave option will be available on the New Game menu.

AI teleport bug fix
Minimizes the bug where aliens teleport into the middle of a player's squad

Defeat screen when beating the game
Minimizes a bug that displays a Defeat screen after winning the game

PC Only
Chris Kluwe as XCOM Hero unlock
Given the number of bugs the game had at launch, it's a bit disappointing the list of changes isn't quite so big, but then, I've personally been hit by a couple of those bugs, so it's nice to hear they've been squashed.  You should be able to download the update from Steam, Xbox LIVE or PSN depending on the version you have.