Skills for followers is in. Train troops is needed to be able to train new regiments, Mentor gives xp for heroes the follower is attached as companion, etc. Also progressed with merging the hero and follower systems, so the follower skills and hero masteries use the same system. Next patch the two systems should be fully merged, and followers able to attain promotions to true heroes. If they have the potential… and the only way to find out is to have them face mortal perils, arcane mysteries and participation in the exploration of extremely dangerous places!
WinXP users get .NET 4.0: http://www.microsoft.com/en-us/download/details.aspx?id=17851 instead of 4.5.1 (which is not compatible with XP).