You can now create your own First Party Audiences and perform Email and Device ID onboarding via the API.
The network account now has the ability to bulk-update campaigns and items across the network.
You can now bulk create items across multiple campaigns. (The same items will be created for each campaign.)
You can now bulk delete items across multiple campaigns.
You can now bulk update items across multiple campaigns - e.g. to pause all submitted items.
You can now update multiple campaigns in 1 request.