Answers

Is Reunion 12 compatible with macOS Big Sur?

Yes. Just be sure to get the latest update of Reunion 12. To do this, open Reunion 12 and select Help > Check for Updates from the menu at the top.

Note that Big Sur was just released on November 12, 2020. Thus, there may be cosmetic issues or perhaps other anomalies that appear when running the initial release of Big Sur with Reunion 12. We will address any issues as soon as possible.