There is a GUI migration plan based on FLASH for other technologies such as HTML5 before the end of support by Adobe and most browsers in Dec / 2020. Or we will suffer the same type of nightmare that exists with JAVA-based GUIs that were never updated again.
ExtremeCloud Appliance (XCA) supports HTML5 and adopts WING APs 75XX, 76XX, 84XX, 85XX series as well as new Wi-Fi 6 but as I know it is not using MINT protocol for that so there are limited features supported
Yes, we are aware of this and our development teams are currently working on this. Support currently does not have any other details on this matter. If you need more information/details, please contact your Extreme Sales team.