This release notes document for ExtremeCloud™ IQ Classic version 25.4.21-5 outlines enhancements, resolved issues, supported devices, and known limitations across the platform. Key technical updates include onboarding, monitoring, and image download support for Fabric Engine and VOSS 9.2.1.1 across various switch models. The release addresses critical issues such as policy sync failures with Universal ZTNA and device status misreporting post-upgrade. It provides detailed public IP address blocks for global data centers and firewall configurations. The document supports IQ Engine version 10.8.3 and includes extensive device compatibility matrices for controllers, access points, switches, routers, and third-party hardware. Known issues span UI inconsistencies, configuration push errors, and licensing anomalies. The guide is technically comprehensive, targeting IT professionals with advanced configuration needs, and includes troubleshooting guidance, supplemental CLI usage, and browser/display compatibility requirements.
