Lumen is being deprecated due to PHP and Laravel performance improvements that make it largely irrelevant. https://lumen.laravel.com/docs/9.x
> Note: In the years since releasing Lumen, PHP has made a variety of wonderful performance improvements. For this reason, along with the availability of Laravel Octane, we no longer recommend that you begin new projects with Lumen. Instead, we recommend always beginning new projects with Laravel.
> Note: In the years since releasing Lumen, PHP has made a variety of wonderful performance improvements. For this reason, along with the availability of Laravel Octane, we no longer recommend that you begin new projects with Lumen. Instead, we recommend always beginning new projects with Laravel.