[peoplewindow]

No, SubstrateVM and Graal are both open source.

The enhanced versions compile to faster code, pretty much. You can do without them if you don't want to pay.

[ptx]

What about the "improved security" of the enterprise version that the FAQ mentions? What makes the community edition less secure?

[jadbox]

I'm curious just how "optimized" and the paid version is (or how crippled the free version in comparison).

[chrisseaton]

Try it yourself - both can be evaluated for free.