Valve has announced that their digital storefront Steam has seen a new update. It is a little second on the front page that shows off games that have recently had a major update for their game.
Valve says this new addition is another way for developers to communicate with their customers on what updates they are adding to their game.
I would personally like the ability to see what updates have been added to a specific game with a link on the games page when it is in your library instead of having to go to the store page first. Maybe that will come in the next update.
