I find a package in my Laravel project that stops me from upgrading to Laravel-9
league/flysystem-cached-adapter
In the Laravel 8 documentaiont it says here
In addition, you may choose to install a cached adapter for increased performance: CachedAdapter: composer require league/flysystem-cached-adapter "~1.0"
So it kind of giving an idea that this package is optional
Laravel 9 Upgrade Guide does not mention this package at all here. Nothing about removing or leaving this package.
Should I delete it, or should I replace it with something else?