{
    "active": true,
    "name": "Collections",
    "slug": "collections",
    "docsSlug": "doctrine-collections",
    "versions": [
        {
            "name": "2.0",
            "branchName": "master",
            "slug": "latest",
            "upcoming": true
        },
        {
            "name": "1.7",
            "branchName": "1.7.x",
            "slug": "1.7",
            "upcoming": true
        },
        {
            "name": "1.6",
            "branchName": "1.6.x",
            "slug": "1.6",
            "current": true
        }
    ]
}

{
    "active": true,
    "name": "Collections",
    "slug": "collections",
    "docsSlug": "doctrine-collections",
    "versions": [
        {
            "name": "2.0",
            "branchName": "2.0.x",
            "slug": "latest",
            "upcoming": true
        },
        {
            "name": "1.7",
            "branchName": "1.7.x",
            "slug": "1.7",
            "upcoming": true
        },
        {
            "name": "1.6",
            "branchName": "1.6.x",
            "slug": "1.6",
            "current": true
        }
    ]
}

Rename master branch to 2.0.x
Rename master branch to 2.0.x