FIDERN expects participants to refresh metadata daily to ensure that SAML deployments have access to the most up-to-date keys and other registered information.
Participants are strongly encouraged to use metadata client software that properly handles metadata; failure to do so can have profound effects on the successful use of the Federation. In addition to maintaining the security of your own deployment, proper metadata use is critical to ensure that other participants can depend on your system behaving correctly when they make changes.