Where can I download the latest version of Circle²? Julia@FAW August 14, 2019 12:25 Updated Follow Hi! You can always download the latest version of Circle² here. . . . Related articles How do I activate Circle offline? I bought Circle in a music store, via another website or second-hand. Why can't I see my Activation Code in my account? How do I install and activate Sublab? I want to use Circle NKS in Komplete Kontrol / Maschine. I received the error message "Serial in use." Comments 0 comments Article is closed for comments.