Up grading jjos

High Guys, Im currently on JJos1, the first payed version,

Can I jump up to the highest operating system, Or do I have to go up in steps?

(sorry if this has already been asked)



EDIT: Im using the 1000

With highest, you mean latest OS 1 version or 2XL?. First yes, second no. You have to buy OS 2 first and then pay some extra for 2XL upgrade.