To be completely honest I am not sure. I haven't tested them all yet. But I have migrated previous projects to GB Studio 4 and they work fine. I can get back to you in a bit. I will test if migrating this will come up with any issues.
Viewing post in GB Studio Status Menu System Template (Up to Lvl. 16) comments
*UPDATE* I just tested it now. I migrated it to GB Studio 4.1.3 and it worked. But if for some reason it suddenly doesnt work, if your main project is on a higher version. You'll still have to manually copy paste this entire system one by one piece by piece into your new project anyway. All my systems are usually just templates so GB Studio creators like yourself can dissect it and see how the system works and apply it to your new project.