You can use the existing version without any problem. We update frequently all theme plugins to their latest versions in every theme release or in case when an urgent update is needed. So they are always fully compatible with the current theme version.
If you must update a prior to the next theme release, then you will have to buy a license by yourself, but we thought that this isn’t needed because the version included works perfectly.
You are free to make the choice that best fits your needs.
