Apple on Monday rolled out the first beta for iOS 12, the company’s latest update to iOS. The new software introduces several new features, including Memoji, grouped notifications, and grouped FaceTime calls.

If you’re a developer, you can download the first beta of iOS right now to begin testing your app. If you’re a regular consumer, you should probably stay away from this release—at least until Apple releases the next few betas.

These early updates can be bug-ridden, which means running it on your daily driver can be risky. If you’re anxious to try the features out, you might want to wait for Apple to release a public beta.

Apple is set to release iOS 12 as a free update later this fall.