for CML 2.8 and maintenance releases for CML 2.9 (Nov 2025) are the current standards. Cisco DevNet Download Locations Access depends on your specific CML license type: 'refplat-image.iso' download - from where?
If you are a student, check the Cisco Networking Academy . You may get free access to CML for educational purposes, making the entire "patch" conversation irrelevant. Happy labbing! cisco cml refplat iso download patched