In what year were screenshots added to Steam?

Screenshots were added to Steam in the year 2011 to enhance the gaming experience for users. Prior to this, players would often have to rely on external software or manually upload images to share their gameplay moments. With the introduction of the screenshot feature, gamers were able to effortlessly capture and share their in-game experiences directly within the Steam platform, making it more convenient for them and fostering a sense of community among players.