Context: I have created a plugin that is enabled only at the network level and it handles certain synchronizations between the child sites. As it is a network level plugin, it has its menu added to the network dashboard instead of the admin dashboards of child sites.
I’m considering setting up a WP multisite network. It would seem to fit my situation perfectly. There’s one thing I still need to find out about domain mapping.
When trying to update one Network/MU install, I got the following error.