With every upgrade, make sure to publish Telescope's assets and clear the view cache:
php artisan telescope:publish
php artisan view:clear
Telescope 5.0 no longer automatically loads migrations from its own migrations directory. Instead, you should run the following command to publish Telescope's migrations to your application:
php artisan vendor:publish --tag=telescope-migrations
PHP 7.3 is now the minimum required version.
Laravel 8.0 is now the minimum required version.