We provide mongodb sharded cluster as  a cloud service.We suggest tenant use "mongodb+srv://" as the connection string prefix.

We insert a SRV record into DNS when tenant scale out a mongos node.We want driver auto discovery this node and then apply new connection to it.

Actually this new mongos node does not appear in the topology before the app with driver restart.

I know the "DNS Seed List" feature is aimed to decrease app's maintenance load.It would be better if driver could monitor the change of dns seed list and reset the topology in time.