You can uninstall the old one first but it shouldn't matter as it will just overwrite the files and leave the current settings.ini that may have your custom action buttons you have set up.
Hey Pipeline,
Hate to be a PITA here, but the app won't launch :-(
When I try launch at the prompt upon installing, I get the message in the screenshot, and when I try to launch it by running the exe. (as admin, ofc) nothing at all happens.
B.T.W. Please do not concern yourself with this during the holidays, I'm just leaving this here for whenever is convenient for you at a later time.
Happy Holidays!