wait how do i turn this feature on? is it on because i am already playing the early access? will my game auto update on steam?The unstable build can only be accessed by opting in using Steam's beta opt-in function. So it is a Steam exclusive. Steam players will work hard this month to get it all ironed out for your gaming pleasure next month.
You get to the beta opt-in screen by right-clicking on 7 Days to Die in your library and selecting Properties. Then click Betas and you'll see a drop down menu with many of the older versions of 7 Days to Die. You can select any of these to download those versions if you want to try any of them. On Monday afternoon TFP will add "latest_experimental" to the list of betas you can try and that one will be 1.0