Upgrade guide: Laravel 12 to 13

{
  "require": {
    "laravel/framework": "^13.0",
    "laravel/tinker": "^3.0"
  },
  "require-dev": {
    "phpunit/phpunit": "^12.0",
    "pestphp/pest": "^4.0"
  }
}

{
  "require": {
    "laravel/boost": "^2.0"
  }
}

composer update

composer global update laravel/installer

use Illuminate\Foundation\Http\Middleware\PreventRequestForgery;
use Illuminate\Foundation\Http\Middleware\VerifyCsrfToken;

// Laravel <= 12.x
->withoutMiddleware([VerifyCsrfToken::class]);

// Laravel >= 13.x
->withoutMiddleware([PreventRequestForgery::class]);

// Laravel <= 12.x
Str::slug((string) env('APP_NAME', 'laravel'), '_').'_cache_';
Str::slug((string) env('APP_NAME', 'laravel'), '_').'_database_';
Str::slug((string) env('APP_NAME', 'laravel'), '_').'_session';

// Laravel >= 13.x
Str::slug((string) env('APP_NAME', 'laravel')).'-cache-';
Str::slug((string) env('APP_NAME', 'laravel')).'-database-';
Str::snake((string) env('APP_NAME', 'laravel')).'_session';

CACHE_PREFIX=myapp_cache_
REDIS_PREFIX=myapp_database_
SESSION_COOKIE=myapp_session

// config/cache.php
'serializable_classes' => [
    App\Data\CachedDashboardStats::class,
    App\Support\CachedPricingSnapshot::class,
],

// config/session.php
'serialization' => 'php',

$container->call(function (?Carbon $date = null) {
    return $date;
});

// Laravel <= 12.x: returns a Carbon instance
// Laravel >= 13.x: returns null

class RoleUser extends MorphPivot
{
    protected $table = 'role_user'; // Specify explicitly
}

// Laravel <= 12.x
if ($event->exceptionOccurred) {
    // An exception occurred
}

// Laravel >= 13.x
if ($event->exception !== null) {
    // An exception occurred
    $exception = $event->exception;
}

// Laravel <= 12.x
$event->connection;

// Laravel >= 13.x
$event->connectionName;

// Laravel <= 12.x
Manager::extend('custom', function ($app) {
    return $this->createCustomDriver($app); // $this is the service provider
});

// Laravel >= 13.x
$provider = $this;
Manager::extend('custom', function ($app) use ($provider) {
    return $provider->createCustomDriver($app);
});

// Laravel <= 12.x
pagination::default
pagination::simple-default

// Laravel >= 13.x
pagination::bootstrap-3
pagination::simple-bootstrap-3

// Illuminate\Contracts\Cache\Store
public function touch($key, $seconds);

// Before
use Illuminate\Foundation\Http\Middleware\VerifyCsrfToken;
->withoutMiddleware([VerifyCsrfToken::class]);

// After
use Illuminate\Foundation\Http\Middleware\PreventRequestForgery;
->withoutMiddleware([PreventRequestForgery::class]);

'serializable_classes' => [
    App\Models\User::class,
    App\Data\SomeData::class,
],

// Before
if ($event->exceptionOccurred) { ... }

// After
if ($event->exception !== null) { ... }

SESSION_COOKIE=laravel_session

php artisan cache:clear