var systemVersion = UIDevice.current.systemVersion
var systemVersion = NSProcessInfo.processInfo().operatingSystemVersion
if #available(iOS 9.0, *) {
// use the feature only available in iOS 9
// for ex. UIStackView
} else {
// or use some work around
}

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Mr.Javed Multani

Mr.Javed Multani

iOS Developer, Triple graduated, Passionate, Love workout, blogger