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website/blog/2023-09-23-release-0-21.md

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 Yew 0.21 brings a complete rewrite of `yew-agent`. This streamlines and simplifies the way workers operate. Here's what you need to know:
 
--   **Unification of PublicWorker and PrivateWorker:** We've brought PublicWorker and PrivateWorker together, creating a single, consistent worker type that's easier to work with.
 
--   **Introducing WorkerSpawner:** Say goodbye to the old `Worker::bridge()` method. Now, you can use the WorkerSpawner with a builder pattern to spawn workers. It's a more intuitive way to create workers, and it always spawns a new one.
+-   **Introducing Providers:** Say goodbye to the old `Worker::bridge()` method. Now, you can use the use `WorkerProvider` / `ReactorProvider` / `OneshotProvider`  as per your need, by creating them using the hooks. 
 
 -   **WorkerLink to WorkerScope:** We've removed WorkerLink in favor of WorkerScope. This change simplifies the worker architecture, making it more straightforward to manage and maintain.
 
--   **WorkerBridge::fork():** For those who relied on PublicWorker functionality, we've introduced WorkerBridge::fork(). It allows you to "fork" the bridge with a different callback and HandlerId.
 
 There are two types of agents to be used, depending upon the situation: