Custom indexes are created in 18.1 for real time reporting directly in ES without product template. Will it be migrated automatically with migration utility? For microbot/engage summary- do you need to update these project build with 19.0 dlls?

[mharika]

Custom indexes are created in 18.1 for real time reporting directly in ES without product template. Will it be migrated automatically with migration utility? For microbot/engage summary- do you need to update these project build with 19.0 dlls.