{
    "name": "friendsofsymfony/rest-bundle",
    "type": "symfony-bundle",
    "description": "This Bundle provides various tools to rapidly develop RESTful API's with Symfony2",
    "keywords": ["rest"],
    "homepage": "http://friendsofsymfony.github.com",
    "license": "MIT",
    "authors": [
        {
            "name": "Lukas Kahwe Smith",
            "email": "smith@pooteeweet.org"
        },
        {
            "name": "Konstantin Kudryashov",
            "email": "ever.zet@gmail.com"
        },
        {
            "name": "FriendsOfSymfony Community",
            "homepage": "https://github.com/friendsofsymfony/FOSRestBundle/contributors"
        }
    ],

    "require": {
        "php":                            ">=5.3.2",
        "symfony/symfony":                ">=2.1.0-dev",
        "sensio/framework-extra-bundle":  "*",
        "jms/serializer-bundle":          "*"
    },

    "autoload": {
        "psr-0": { "FOS\\RestBundle": "" }
    },

    "target-dir": "FOS/RestBundle"
}

{
    "name": "friendsofsymfony/rest-bundle",
    "type": "symfony-bundle",
    "description": "This Bundle provides various tools to rapidly develop RESTful API's with Symfony2",
    "keywords": ["rest"],
    "homepage": "http://friendsofsymfony.github.com",
    "license": "MIT",
    "authors": [
        {
            "name": "Lukas Kahwe Smith",
            "email": "smith@pooteeweet.org"
        },
        {
            "name": "Konstantin Kudryashov",
            "email": "ever.zet@gmail.com"
        },
        {
            "name": "FriendsOfSymfony Community",
            "homepage": "https://github.com/friendsofsymfony/FOSRestBundle/contributors"
        }
    ],

    "require": {
        "php":                            ">=5.3.2",
        "symfony/symfony":                "2.1.*",
        "sensio/framework-extra-bundle":  "*",
        "jms/serializer-bundle":          "*"
    },

    "autoload": {
        "psr-0": { "FOS\\RestBundle": "" }
    },

    "target-dir": "FOS/RestBundle"
}

Make symfony/symfony dep more explicit
Make symfony/symfony dep more explicit

Per @stof's advice, we shouldn't have unbounded ">=" version requirements, as it assumes all future versions will preserve BC.