I am not sure if I missed the memo or what but it seems that in 5.1 custom fields are now read only and everything needs to be converted to tags. I am trying to figure out how to programatically interact with the tagging as we use custom fields to sync some information to and fro from our machine database. I see the property "tags" on most of the managed entities but I don't see where I can manipulate the tags (add/change/delete). All I can do is get an array of the tags currently associated with the entity.
Do I need to tweak something in my vCenter configuration to keep the custom fields in place for now and useable as they were before? The api docs all say "experimental" on that attribute and the vcTag object type.
Paul