For one, Nothing has released the Nothing OS 4.0 Open Beta (Android 16) for those with a Nothing phone and who want to test out Android 16 before it goes stable. Nothing OS 4.0 Open Beta Download: OK, so first off, we have Nothing OS 4.0 in beta. In the Nothing OS 4.0 beta, you’ll find several changes, all of which we’ve listed out in this post. Nothing Essential Apps and Playground: In more interesting news, because we like new ideas, Nothing has launched the Playground and Essential Apps that live within it. You can read more on the Playground and Essential Apps and this post.