How To Update Linux Install

Sorry in advance for the basic nature of the question, but I recently got RD up and running on a Linux Mint install. I am a linux newb, but am pretty good at following instructions. How can I update the RD install to the latest version. If there a terminal command? Should/can I just re-install using the latest package? How about just letting the install “phone home”

Thanks in Advance,
Michael

sudo dpkg -i <INSTALL PACKAGE NAME>