Hello, I checked in your account, you have Studio One 3 Professional. You can update to 3.5 and higher anytime you choose to.
You can either update Studio One from inside of Studio One from the menu Help > Check for Updates.
Or you can log into http://my.presonus.com/products/software,
and download install the latest version.
Please create a support ticket if you would like to discuss this in more detail.
Here is a link to create a ticket: http://support.presonus.com/hc/en-us/requests/new