Will a 7.9 license work in 8.0+?

I have a project where we have a development license (just meaning a license for our development environment so we don’t have to reset the trial timer).

The customer is requesting an Ignition upgrade to 8.1.9. Are we able to use the same 7.9 license, or perhaps pay some fee to upgrade the license as opposed to buying another full fledged license for our development environment?

It is a paid upgrade, and it is fairly expensive in my opinion.

This is a question only your sales rep can truly answer.