{
    "name": "symfony/polyfill-util",
    "type": "library",
    "description": "Symfony utilities for portability of PHP codes",
    "keywords": ["polyfill", "shim", "compat", "compatibility"],
    "homepage": "https://symfony.com",
    "license": "MIT",
    "authors": [
        {
            "name": "Nicolas Grekas",
            "email": "p@tchwork.com"
        },
        {
            "name": "Symfony Community",
            "homepage": "https://symfony.com/contributors"
        }
    ],
    "require": {
        "php": ">=5.3.3"
    },
    "autoload": {
        "psr-4": { "Symfony\\Polyfill\\Util\\": "" }
    },
    "minimum-stability": "dev",
    "extra": {
        "branch-alias": {
            "dev-master": "1.3-dev"
        }
    }
}

{
    "name": "symfony/polyfill-util",
    "type": "library",
    "description": "Symfony utilities for portability of PHP codes",
    "keywords": ["polyfill", "shim", "compat", "compatibility"],
    "homepage": "https://symfony.com",
    "license": "MIT",
    "authors": [
        {
            "name": "Nicolas Grekas",
            "email": "p@tchwork.com"
        },
        {
            "name": "Symfony Community",
            "homepage": "https://symfony.com/contributors"
        }
    ],
    "require": {
        "php": ">=5.3.3"
    },
    "autoload": {
        "psr-4": { "Symfony\\Polyfill\\Util\\": "" }
    },
    "minimum-stability": "dev",
    "extra": {
        "branch-alias": {
            "dev-master": "1.4-dev"
        }
    }
}

Add Php72 polyfill, abandon Xml polyfill
Add Php72 polyfill, abandon Xml polyfill

