Once upon a time changing a Domino servers IP address was very problematic. The client would cache the old IP addresses and store them in the location documents. Similar issues occurred on with Servers and Connection documents.
The documentation here covers it —>
It appears that things may of changed as during recent testing we found the $SavedAddresses in the Location document contain hostnames not IP addresses. So an IP address change just works (from the Client to the Server).
Now I don't know how deep these changes go, and the documentation above certainly does not indicate it's been done throughout the system.
Has anyone had recent experience in this area and able to comment ?