Yes, you don’t loose any data when you upgrade the demo or any other version for that matter. Everything remains intact.
This is a great feature of all our software as not only can you upgrade the demo version when you want, but you can also install the free demo version on any computer design your project and open the project file to any full version and get the working documents according to the version your running.
So if you have a full version in the workshop no need to buy another version for you laptop.
Just install the demo version on your laptop and what ever other computer you want to work from.