Renewing your Shiny Server Pro license is quite easy. After you have purchased a license renewal, you will receive an email with a license file or key that can be used to activate the license on a given system.
We recommend activation with the license file solution as it is our most robust and seamless licensing method.
For additional information, please see https://docs.posit.co/licensing/licensing.html
You will need to deactivate your old license and then apply the new license file, please follow the instructions provided in this link.
Please see this link for our Licensing FAQs