If you receive a message during product update that your registration key is old and invalid for the current software build, but you are a legal registered user , contact our technical support.
R-Studio Help -> Introduction to R-Studio -> Contact Information and Technical Support
Old and invalid registration key message during update
Re: Old and invalid registration key message during update
You may also find useful information on our Sales & Licensing FAQ
http://www.r-tt.com//FAQ.shtml
http://www.r-tt.com//FAQ.shtml