This release notes document for ExtremeCloud IQ (Classic) version 25.12.0-127 (Hotfix 2) provides technical information for network administrators, engineers, and support personnel responsible for cloud-managed wired, wireless, fabric, and multi-vendor network environments. It details new lifecycle management capabilities, including onboarding, monitoring, configuration, image download, drag-and-drop upgrades, and downgrade support for Fabric Engine/VOSS 9.4.1 and 9.3.3 across supported Universal Switches, VSP7400, and VSP4900 platforms. This release addresses an access issue for Extreme Guest Essentials users and addresses additional internal changes for environment-specific JAR/class loading order issues. Addressed issues resolve wireless monitoring inaccuracies, report export limitations, SNTP-related configuration failures, AP5020 802.1X authentication and UZTNA transport configuration problems, localization defects, and AP operating system conversion errors. Known issues identify limitations affecting SSO session handling, firmware upgrade auditing, API behavior, VLAN and LAG deployments, high-availability and GRE failover scenarios, visualization accuracy, stack management, troubleshooting workflows, and configuration synchronization, with documented workarounds and operational guidance for enterprise-scale deployments and ongoing network management.
