On the 'Account' tab under 'Beta Participation' click the 'Change.' button.With Steam running, click on 'Steam' in the upper left, then choose the 'Settings' menu.Please follow the instructions below to participate in the Steam client beta: Opting in to the Steam Client Beta lets you use the latest features before they're released. We offer a catalog of PC, Mac, and Linux games, many of which support Steam Play so you can buy once and play anywhere, and Cross-Platform Multiplayer so you can play with all your friends, no matter where they log in. Whether you’re on a PC, Mac, Linux box, mobile device, or even your television, you can enjoy the benefits of Steam. On Steam, your games stay up-to-date by themselves. Hunting for patches and downloading from unorganized web sites is so twentieth-century. Help shape the future of your favorite games. Gift your friends, trade items, and even create new content for games in the Steam Workshop. Meet new people, join game groups, form clans, chat in-game and more! With over 100 million potential friends (or enemies), the fun never stops. Enjoy exclusive deals, automatic game updates and other great perks. We have thousands of games from Action to Indie and everything in-between.