Go SDK 1.6 does not connect to the private networking hostnames

When Private Networking is set up between two VPCs and the go SDK 1.6.7 is used to connect to the cluster, the https addresses used to connect to the cluster are the WAN addresses rather than the Private Networking address.

To document this:
i) footnote to the table on https://docs.couchbase.com/cloud/reference/sdk-compatibility.html
ii) Notes in https://docs.couchbase.com/go-sdk/current/project-docs/compatibility.html#network-requirements
and/or https://docs.couchbase.com/go-sdk/current/howtos/managing-connections.html#working-in-the-cloud saying to avoid 1.6 for $reasons.
iii) Cloud section added to https://docs.couchbase.com/go-sdk/1.6/managing-connections.html
...with warning that private networking will not work.