Upgrade from Laravel 8 to 9

Since Laravel 9 has Symfony 6.0 components and Symfony 6.0 also requires a minimum PHP 8.0, this has resulted in Laravel 9 being able to run on PHP version 8.0 minimum.

Step:1 Remove filedoper/proxy

To remove the filedoper/proxy, please run the below command as laravel 9 did not use filedoper/proxy.

composer remove fideloper/proxy

Step:2 Update/add laravel dependencies.

Go to your composer.json file which is present inside your project root folder.

now do the below changes in your composer.json file

"laravel/framework": "^9.0",
"nunomaduro/collision": "^6.0",

now you have to replace

"facade/ignition": "^2.5", with "spatie/laravel-ignition": "^1.0",

in your application’s composer.json file.

"facade/ignition": "^2.5", //remove
"spatie/laravel-ignition": "^1.0", // add

Step:3 Update Trustedproxy.php middleware

If you are upgrading your Laravel 8 project to Laravel 9 by importing your existing application code into a totally new Laravel 9 application skeleton, you may need to update your application’s “trusted proxy” middleware.

Within your app/Http/Middleware/TrustProxies.php file, update use Fideloper\Proxy\TrustProxies as Middleware to use Illuminate\Http\Middleware\TrustProxies as Middleware.

Next, within app/Http/Middleware/TrustProxies.php, you should update the

$headers property definition:

// Before…

protected $headers = Request::HEADER_X_FORWARDED_ALL;

// After…

protected $headers =
 Request::HEADER_X_FORWARDED_FOR |
 Request::HEADER_X_FORWARDED_HOST |
 Request::HEADER_X_FORWARDED_PORT |
 Request::HEADER_X_FORWARDED_PROTO |
 Request::HEADER_X_FORWARDED_AWS_ELB;

now you have to run the below command in order to update the dependencies.

composer update

Step:4 Test the integration

To check that your laravel version upgraded to laravel 9, please run the below command

php artisan — version

If you haven’t been able to do these things and you really need them, you can take a look at the Laravel Shift site.