-What Version of Sibelius do Sibelius plugins work with?

Our plugins work with all paid versions of Sibelius

-What versions of Kontakt do Kontakt Instruments work with?

Unless explicitly noted in the product description, our Kontakt instruments require the full paid version of Kontakt 6 or higher. We do this to keep the cost down and to pass it along to you. Native Instrument requires developers to pay a lot of money for license keys, and avoiding that is how we are able to make these instruments at lower prices than almost any other similar developers.