This update introduces significant new resources: message and tasks. Developers can now use message.send for blocking requests to a billing agent and message.stream for real-time updates. Accompanying these are task management methods including tasks.get, tasks.cancel, and tasks.subscribe for monitoring long-running operations. Crucially, this is a breaking change: the name and parent parameters have been promoted to strictly required across several methods. If your existing integrations omitted these fields, they will now fail. Additionally, tasks.get now supports a historyLength parameter and an experimental tenant parameter for multi-tenant environments.
Breaking Change
Docs