https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-web-interface-help/objects/objects-security-profiles-data-fi

To see how new and modified App-IDs impact your Security policy, you need to follow the path Device > Dynamic Updates > Review App-IDs on PAN-OS 11.x. This option allows you to perform a content update policy review for both downloaded and installed content. You can view the list of new and modified App-IDs and their descriptions, and see which Security policy rules are affected by them. You can also modify the rules or create new ones to adjust your Security policy as needed1. Reference: See How New and Modified App-IDs Impact Your Security Policy, Updated Certifications for PAN-OS 10.1, Palo Alto Networks Certified Network Security Administrator (PAN-OS 10.0) or [Palo Alto Networks Certified Network Security Administrator (PAN-OS 10.0)].

https://www.paloaltonetworks.com/content/dam/pan/en_US/assets/pdf/datasheets/education/pcns a-study-guide.pdf Applications and Threats: Includes new and updated application and threat signatures, including those that detect spyware and vulnerabilities.