Release Wave 2 Early access has been released and here are the steps to enable it on your instance.
Logon to Admin Portal
Open the environment which you would like to enable Early access and click on Manage.
You will see the screen as below and click on Update now for getting Release Wave 2 Features to the instance.
You will be asked to enter Environment’s name for the verification.
After verification, the Update process starts and it will take some time.
Hope this helps.