+* Add instance-selector service
+* Revise ac-xapp, app-mgr, caas-ingress, e2-mgr service to support multiple ric instances
+* Revise ac-xapp, app-control, catalog, caas-ingress, ran-control components to listen to the instance change
+* Upgrade A1 Mediator API and submodule to tag 2.1.0
+* Upgrade App Manager API and submodule to tag 0.3.3
+* Upgrade E2 Manager API and submodule to tag 3.0.3
+* Add instance selector dialog component and service
+* Repair onSidenavClose method
+* Extend to support selecting a RIC instance within a region
+* Update angular to latest version 8, prepare for upgrade to version 9.