I auto-updated our site from 3.0.5 to 3.1.2 on a test system. The upgrade process worked, but our site is not working properly. I will be opening another thread for that issue. After the upgrade process, I am asked to 'Update Network' I will leave the details out but our system is configured so that it cannot make an http/https to itself.
So my questions are:
1) What networks are updated? Is this one call for each and every blog on the system? What is the url - http://<host>/wp-admin/upgrade.php?step=upgrade_db
2) What does 'Update Network' do? Is it required? What happens if we didnt do it - because at the moment it cannot work?
We have a possible work around, but need to know what hosts will be called. I am thinking all of them.