{
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            "vivaldi": 1.10,
            "yandex": 17.04,
            "ios":10.3,
            "e":14.0,
            "i":14.0,
            "iOS": 10.3,
            "a": 700,
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        }
    }
}
{
    "current": {
        "desktop": {
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            "f": 55.0,
            "i": 15.0,
            "o": 47.0,
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            "vivaldi": 1.10,
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            "i":14.0,
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            "a": 700,
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        }
    }
}

Update to current browser versions
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