In an effort to make upgrading the constantly changing config files
easier, Shift defaulted them so you can review the commit diff for
changes. Moving forward, you should use ENV variables or create a
separate config file to allow the core config files to remain
automatically upgradeable.
Laravel recommends using the `Str` and `Arr` class methods directly instead of the respective helper functions. These helper functions are [deprecated in Laravel 5.8][1] and will be removed in a future version.
[1]: https://github.com/laravel/framework/pull/26898
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