There are two ways to update the license: Through the GUI, or through the command line.

To update the license in the GUI mode, execute asperascp (as a root user) in a Terminal and go to Menu bar > Tools > License to bring up the License window.

You may click the Import License File... and select the license file, or Paste License Text... to copy-and-paste the license file's content. When finished, the license information will appear in the window. Verify that it is correct and click Close.

To update the license through the command line, open the following file with write permission, replace the existing license key string with the new one:

/opt/aspera/etc/aspera-license

When finished, save and close the file. Use this command to verify the new license info:

$ ascp -A

Lastly, if you are using the Node API, you must reload the asperanoded service.

$ /opt/aspera/bin/asnodeadmin --reload