This release adds "active teardowns" for operations, which means that an exchange can now send a teardown to cancel ongoing operations. The subscriptionsExchange for instance now ends ongoing subscriptions proactively if the server says that they've completed! This is also reflected as fetching: false in the useQuery and useSubscription hook.
We've also fixed a small issue with suspense and added all features from useQuery to useSubscription! This includes the pause argument and an executeSubscription function.