At last year's TC summit, we discussed the deprecation of the TO UI in favor of the Traffic Portal.
Now that TP has almost achieved feature parity with the TO UI, that day is coming soon. Here are 2 issues I know that need to be complete to achieve feature parity: https://github.com/apache/incubator-trafficcontrol/issues/1616 https://github.com/apache/incubator-trafficcontrol/issues/1287 Deprecation may mean simply deleting traffic_ops/app/public/ for 2.3 (or 3.x). Or maybe it means something else. Not sure yet. But the point is, if you want to ensure that all new UI features that you build live past 2.3 (or 3.x), please be sure to put those features in TP. Reach out to me if you need help with TP. Jeremy