The Bleeding Edge Closed Beta is a brand new application which will be available to download and install via your Steam library if you pre-purchased the game.
As the technical alpha has finished the Bleeding Edge technical alpha application is no longer available to download nor will the game function if it's still installed on your system.
Technical alpha keys for Steam are no longer valid meaning they can no longer be redeemed, technical alpha participants looking to join the Closed Beta will be sent a new Closed Beta key via email. (these will be sent to the same email address as the technical alpha keys)
Xbox One & Windows 10
The Bleeding Edge Closed Beta is an update to the existing Bleeding Edge Technical Alpha app, you can download and install the update for this application when it becomes available.
If you have an active Xbox Game Pass membership then the Bleeding Edge alpha app will be available to download and install from the Microsoft store or the Xbox One store page.