This release notes document for ExtremeCloud IQ (Classic) version 25.12.0-123 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. The release includes guidance on supported IQ Engine 10.8.7, Switch Engine/EXOS, Fabric Engine, VOSS, WiNG, routers, controllers, ExtremeCloud IQ Site Engine, CoPilot, and A3 integrations, along with firmware prerequisites, browser support, cloud connectivity requirements, stacking constraints, and device support matrices. 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.
