When upgrading to a new major version of Horizon, it's important that you carefully review [the upgrade guide](https://github.com/laravel/horizon/blob/master/UPGRADE.md). In addition, when upgrading to any new Horizon version, you should re-publish Horizon's assets:

php artisan horizon:publish

To keep the assets up-to-date and avoid issues in future updates, you may add the `vendor:publish --tag=laravel-assets` command to the `post-update-cmd` scripts in your application's `composer.json` file:

{

"scripts": {

"post-update-cmd": [

"@php artisan vendor:publish --tag=laravel-assets --ansi --force"

]

}

}