Hi, with side by side scenario I want to avoid Upgrade Sequentially 4.4 → 5.0 → 6.0 → 8.0 as it’s time consuming and also want to keep mongo V4.4 intact in case a rollback is needed, after I built 3 new servers with REH V9 and install Mongo V8, how can I transfer data from mongo V4.2 to mongo V8, I need all scenarios possible : like backup/restore, replica between mongo V4.4 and V8 etc…
both env is a replica env with 3 nodes
thank for you help