PS4’s new 4.0 System Update is set for Beta Test Soon
A beta test for the next big PS4 firmware update is scheduled to begin soon, and you can sign up now for a chance to participate.
Similar to what Sony did for the 3.00 and 3.50 updates, it will allow a limited number of PS4 owners to test out update 4.00's new features. This requires you to be at least 18 years old and have an Internet-connected PS4, as well as access to a master account on the system. If you're accepted and install the update, you'll be able to roll back to the current 3.55 firmware whenever you want.
There's unfortunately no word on what the 4.00 update actually adds or when it will launch to the public--though that's something that may depend on how the beta goes.
The beta is set to begin in "early August," and you have until then to sign up to participate. You can do so here. The only information you need to provide is your PlayStation Network username.
Sony last added major new features in April with the 3.50 update. That introduced communities, a dedicated PlayStation Plus hub, the ability to share video clips to Twitter, and more. It also offered some undocumented features, such as a USB music player and support for 4 TB hard drives.