Intel has released another beta driver for TITANFALL and Thief players! The beta drivers are available to download now under version number 220.127.116.1196 and are available for those running Intel Iris and HD Graphics. This Beta driver supports 64-bit variants of Windows 8.1, Microsoft Windows 8 and Microsoft Windows 7 operating systems. Intel does not suggest updating to this driver if you do not plan to play either of these games titles.
Earlier this month Intel released 18.104.22.16864 beta drivers for the same game titles, so if you downloaded that build you should update to this newer driver revision as it does have more improvements.