Release Notes can be found here.
How can I delete an entity, and how can I remove an attribute from an entity?
For workspaces, I can delete attributes using this endpoint https://api.firecloud.org/#!/Workspaces/updateAttributes. Is there an endpoint to remove an attribute from an entity? I know it's possible to set it to something else using the entity upload endpoint, but because the behavior is "upsert" I can't figure out how to delete it.