Institutions that use the Sassafras licensed version of Isadora must use an installer customized for your institution. You cannot install the Standard Edition or USB Key Edition licenses, because they will not work with your Sassfrass license.
Within one week of a new release, TroikaTronix will send you a link so that you can download your custom installer. If you are seeing this article because Isadora notified you there is a new version available, and you did not receive an email notification for the new version, then please open a new ticket to let us know.