Upgrade Guide

Upgrading To 5.2.0 From 5.1

Lumen 5.2 represents a more decided shift towards focusing on stateless APIs. Therefore, sessions have been removed from the framework. If you would like to use these features, you should upgrade your Lumen 5.1 application to Laravel 5.2.

Upgrading your Lumen application to the full Laravel framework mainly involves copying your routes and classes over into a fresh installation of Laravel. Since Laravel and Lumen share many of the same components, your classes should not require any modification.

Updating Dependencies

Update your composer.json file to point to laravel/lumen-framework 5.2.* and vlucas/phpdotenv ~2.2.


In the bootstrap/app.php file you need to modify the Dotenv::load(...) method call to the following:

try {
    (new Dotenv\Dotenv(__DIR__.'/../'))->load();
} catch (Dotenv\Exception\InvalidPathException $e) {


Lumen no longer implements the Illuminate\Contracts\Foundation\Application contract. Any Application contract type-hints should be updated to reference the Laravel\Lumen\Application class directly.


Since sessions are no longer support in Lumen, authentication is totally based on stateless authentication via API tokens or headers. You should review the full authentication documentation for more information on how to use the authentication system.


Eloquent Base Collections

The Eloquent collection instance now returns a base Collection (Illuminate\Support\Collection) for the following methods: pluck, keys, zip, collapse, flatten, flip.

Key Preservation

The slice, chunk, and reverse methods now preserve keys on the collection. If you do not want these methods to preserve keys, use the values method on the Collection instance.


MySQL Dates

Starting with MySQL 5.7, 0000-00-00 00:00:00 is no longer considered a valid date, since strict mode is enabled by default. All timestamp columns should receive a valid default value when you insert records into your database. You may use the useCurrent method in your migrations to default the timestamp columns to the current timestamps, or you may make the timestamps nullable to allow null values:




MySQL JSON Column Type

The json column type now creates actual JSON columns when used by the MySQL driver. If you are not running MySQL 5.7 or above, this column type will not be available to you. Instead, use the text column type in your migration.


Date Casts

Any attributes that have been added to your $casts property as date or datetime will now be converted to a string when toArray is called on the model or collection of models. This makes the date casting conversion consistent with dates specified in your $dates array.

Global Scopes

The global scopes implementation has been re-written to be much easier to use. Your global scopes no longer need a remove method, so it may be removed from any global scopes you have written.

If we were calling getQuery on an Eloquent query builder to access the underlying query builder instance, you should now call toBase.

If you were calling the remove method directly for any reason, you should change this call to $eloquentBuilder->withoutGlobalScope($scope).

New methods withoutGlobalScope and withoutGlobalScopes have been added to the Eloquent query builder. Any calls to $model->removeGlobalScopes($builder) may be changed to simply $builder->withoutGlobalScopes().

Primary keys

By default, Eloquent assumes your primary keys are integers and will automatically cast them to integers. For any primary key that is not an integer you should override the $incrementing property on your Eloquent model to false:

 * Indicates if the IDs are auto-incrementing.
 * @var bool
public $incrementing = true;

Exception Handling

Your App\Exceptions\Handler class' $dontReport property should be updated to include at least the following exception types:

use Illuminate\Validation\ValidationException;
use Illuminate\Auth\Access\AuthorizationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Symfony\Component\HttpKernel\Exception\HttpException;

 * A list of the exception types that should not be reported.
 * @var array
protected $dontReport = [


The IronMQ queue driver has been moved into its own package and is no longer shipped with the core framework.



If you made use of Laravel's Flysystem integration, you will need to register the filesystem binding. Add the following code to your bootstrap/app.php:

$app->singleton('filesystem', function ($app) {
    return $app->loadComponent(


The ValidatesRequests trait has been merged into the ProvidesConvenienceMethods trait used by Lumen's base controller.

If you previously used the ValidatesRequests trait outside of the BaseController, you may copy it from the 5.1 branch or use the full ProvidesConvenienceMethods trait.


The DatabaseMigrations and DatabaseTransactions traits have moved from Illuminate\Foundation\Testing\DatabaseMigrations and Illuminate\Foundation\Testing\DatabaseTransactions to a new location. Update your tests to import the new namespace:


use Laravel\Lumen\Testing\DatabaseMigrations;
use Laravel\Lumen\Testing\DatabaseTransactions;

class ExampleTest extends TestCase
    use DatabaseMigrations;