If you have an old Sandisk Extreme SSD what's your Firmware version?

If you have an old Sandisk Extreme SSD what’s your Firmware version?

Mine is R201. The latest Dashboard says it should be R211 and the KB website says the same thing ( (Legacy) Solid State Drive support information ) but Sandisk tech support says R201 is current. Was there a newer version uploaded at one time and then withdrawn because of a problem?