I agree. If you're doing something so special in your code that nobody is publicly doing it and you're unable to update the code to make it compatible, then don

I agree. If you're doing something so special in your code that nobody is publicly doing it and you're unable to update the code to make it compatible, then don't upgrade. That's the risk you took when coding it. We shouldn't go out on a limb for hypotheticals that cannot be confirmed. Force them to demonstrate an example publicly so all the cards are on the table. Proprietary code is fine and you can still share concepts by extracting out the issues. Sorry to hear about your demo. Sounds not fun! At least that's in the past :)