You'll also be able to opt-out of all betas by selecting the menu option. From the menu you'll be able to choose from the available betas. Once you've clicked ' Change' a window will appear with a drop-down menu. To adjust your beta participation status click the ' Change' button. If an open beta is available or you're already opted in, it will be displayed within the beta participation section of the ' Settings' page. Mac users will need to choose ' Steam' and then ' Preferences' from the applications menu at the top of the screen. Once you have the menu open click on ' Settings'. Opting in or out of a client beta can be done by opening the Steam Client and clicking on the ' Steam' button located on the menu at the top left.
