Earliest known version (89/08/26) which is not really earliest considering "21st issue" printed on the manual. Mentions MSX on the front cover as the minimum system, but the included sheet with copiable and modifiable titles mentions MSX2 instead.
91/01/01 version, issue 38. The package only mentions MSX2 and 2+ but the green software list also mentions TurboR. "DD" on the package is likely a typo for 2DD.