Our plugins can be used with REALbasic, Real Studio and Xojo for over a decade of years.
See Xojo versions supported
Most customers are on the latest versions, but some have to stay on older versions, e.g. for Web 1 API or older GDI drawing on Windows.
So whatever Xojo version you use, you can always relay on recent plugins to get the latest new classes and bug fixes available for your development.
When we stop someday to deliver 32-bit plugins for macOS, the minimum will move to 2017r3 on macOS, the first IDE coming as 64-bit application.
Please do not hesitate to contact us in case you have questions.