Upgrade to PSR container v2

[hannesvdvreken]

Safe to upgrade to v2?

When your package is not implementing Psr\Container\ContainerInterface, it's safe to upgrade your dependency on psr/container.

composer require psr/container:"^1.0|^2.0"

{
    "require": {
        "psr/container": "^1.0|^2.0"
    }
}

example

league/route doesn't implement it, but allows any version of the container.

So since 5.0.1 (new minor version) it allows both.

New major version required if your package implements a container

See https://github.com/thephpleague/container/releases/tag/4.0.0