Which update option is not available to administrators?

New Spyware Notifications refer to updates for anti-spyware signatures, which are a standard threat prevention update available to administrators.

"New URLs" is not a standard, distinct update option provided by Palo Alto Networks to administrators. URL categories are updated dynamically by the Palo Alto Networks cloud but are not typically presented as an administrator-selectable update option like threat signatures.

New Application Signatures (App-ID) are crucial updates that enable the firewall to identify new applications and changes in existing ones, and are regularly available to administrators.

New Malicious Domains are part of threat intelligence updates, often included in anti-spyware or URL filtering updates, providing protection against known bad domains.

New Antivirus Signatures are regularly provided updates that enable the firewall to detect the latest malware, and are a fundamental threat prevention update available to administrators.