README states PHP 7.4+, but composer.json requires PHP 7.3+

[jonnott]

..surely this wants to be in-tune with whatever the latest compatible laravel/framework requires, i.e. 7.3+ for L8.x?

[nunomaduro]

Composer requires PHP 7.3 to make this package installable on Laravel 8.x. Yet, the package does not support PHP 7.3.

[jonnott]

Composer requires PHP 7.3 to make this package installable on Laravel 8.x. Yet, the package does not support PHP 7.3.

This sounds like something could be broken for PHP 7.3 users then..?

[nunomaduro]

@jonnott We proxy to opis/closure when users are using PHP 7.3: https://github.com/laravel/framework/blob/8.x/src/Illuminate/Queue/SerializableClosureFactory.php.