Hello, I have a question with mongodb replicatset. Right now we are running 4 nodes replicaset with version 2.6.8. Currently we have to add one more node into existing replicaset, while we downloaded the version is 2.6.12.

Would it be possible to keep these two different minor version difference and replicaset will work smoothly? Or we need to have exact 2.6.8 for new node.

Thanks.