AETHER-3077 Add support for 2.0 ROC models, refactoring

Change-Id: I39807ca14c757cfcf8bef0a5d48d8451d8727f89
diff --git a/configs/latest b/configs/latest
index 805b58c..aa06112 100644
--- a/configs/latest
+++ b/configs/latest
@@ -9,7 +9,7 @@
 5G_RAN_SIM_CHART         := aether/5g-ran-sim
 
 # For installing the ROC
-AETHER_ROC_UMBRELLA_CHART := aether/aether-roc-umbrella --version 1.4.64 # last release compatible with v4 models
+AETHER_ROC_UMBRELLA_CHART := aether/aether-roc-umbrella
 ATOMIX_CONTROLLER_CHART   := atomix/atomix-controller
 ATOMIX_RAFT_STORAGE_CHART := atomix/atomix-raft-storage
 ONOS_OPERATOR_CHART       := onosproject/onos-operator --version 0.4.14 # 0.5.x uses different way of loading models