Use the version ofR3trans which corresponds to the version of your SAP System. However, different versions of R3trans are fully compatible with each other, because the data is transported in a standardized format. You can therefore use different versions of R3trans for export and import.
Transports between different databases or operating systems are not a problem either.
When you transport between different SAP releases, this usually does not present any technical problems due to the upward and downward compatibility ofR3trans . However, these transports can lead to logical inconsistencies.