JUCE 5.4.0 Released

I would imagine so (you would need to check the license conditions yourself) as it’s only a particular form of saved state. However, the only reason you would need to do this is if you have already released a VST3 that you need to maintain compatibility with, or if you have also released a VST2 (in which case you’ll need a VST2 license).

See this post for more detail:

I only know of Cubase at the moment, but this may change as people migrate towards VST3.