i have a mongodb shard-cluster with version 4.4.11 , i want to update them to 4.4.29, mongos 、mongodb configdb 、mongodb shard， what the order to update them . if i want to Dark launch, could i just update only one shard for observation? accident after update , do i rollout back them with that , replacing the updated binary with old version .
look forward to your replies and suggestions, thanks !