If you have already purchased SoftRAID (and have a serial number), download the correct version. If you are not already a SoftRAID customer, or you are trying to decide whether to upgrade/update to the full version of SoftRAID, you can download SoftRAID and try for FREE for 30-days. There are no limitations to the trial, it is fully functional. You can also use the chart below to decide which version is best for you.
SoftRAID 5.8.1 is necessary for macOS 10.15 Catalina. You can check compatibility issues here.