Hello, an update has gone out for XCOM: Enemy Within. You can find out more about it by reading the patch notes below.
PC and Console
Balance changes to mimetic skin
The Foundry project Pistol I has been applied to Laser and Plasma Pistols
Fix for a hang when close combat triggers while affected by neural damping
Ironman save turning in to an autosave when spamming save/exit
Pause button to strategy and tactical game
Bug Fix for the Edison Achievement not unlocking when researching all techs
Add hunkerdown to the key bindings page
Allowing XEW to unlock second wave options based on steam achievements a user has
Addition of Touch controls to the game*
*Additional Notes Regarding Touch Support
Touch support can be enabled through the options menu. For full functionality, it is recommended to use this option with a multi-touch display. All features may not be available with single-touch displays. If this feature is enabled without a touch display the game may become unresponsive. This option can be disabled at any time with or without using a touch display through the options menu.