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# Migration from v1.0 to v2.0
To migration integration from RoadRunner v1.* to v2.* follow the next steps.
## Update Configuration
Second version of RoadRunner use single worker factory for all of its plugins. This means that you must include a new section
into your config `server` which is responsible for the worker creation. Limit service no longer presented as separate entity
but rather part of specific service configuration.
```yaml
rpc:
listen: tcp://127.0.0.1:6001
server:
command: "php tests/psr-worker-bench.php"
http:
address: "0.0.0.0:8080"
pool:
num_workers: 4
```
> Read more in [config reference](/intro/config.md).
## No longer worry about echoing
RoadRunner 2.0 intercepts all output to the STDOUT, this means you can start using default var_dump and other echo function
without breaking the communication. Yay!
## Explicitly declare PSR-15 dependency
We no longer ship the default PSR implementation with RoadRunner, make sure to include one you like the most by yourself.
For example:
```bash
$ composer require nyholm/psr7
```
## Update Worker Code
RoadRunner simplifies worker creation, use static `create()` method to automatically configure your worker:
```php
<?php
use Spiral\RoadRunner;
include "vendor/autoload.php";
$worker = RoadRunner\Worker::create();
```
Pass the PSR-15 factories to your PSR Worker:
```php
<?php
use Spiral\RoadRunner;
use Nyholm\Psr7;
include "vendor/autoload.php";
$worker = RoadRunner\Worker::create();
$psrFactory = new Psr7\Factory\Psr17Factory();
$worker = new RoadRunner\Http\PSR7Worker($worker, $psrFactory, $psrFactory, $psrFactory);
```
RoadRunner 2 unifies all workers to use similar naming, change `acceptRequest` to `waitRequest`:
```php
while ($req = $worker->waitRequest()) {
try {
$rsp = new Psr7\Response();
$rsp->getBody()->write('Hello world!');
$worker->respond($rsp);
} catch (\Throwable $e) {
$worker->getWorker()->error((string)$e);
}
}
```
## Update RPCs
To create RPC client use new Goridge API:
```php
$rpc = \Spiral\Goridge\RPC\RPC::create('tcp://127.0.0.1:6001');
```
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