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ReactiveSwift v3.0.0-alpha.1 Release Notes

  • 🚦 1. Signal now uses Lifetime for resource management. (#404, kudos to @andersio)

    The Signal initialzer now accepts a generator closure that is passed with the input Observer and the Lifetime as its arguments. The original variant accepting a single-argument generator closure is now obselete. This is a source breaking change.

       // New: Add `Disposable`s to the `Lifetime`.
   let candies = Signal<U, E> { (observer: Signal<U, E>.Observer, lifetime: Lifetime) in
      lifetime += trickOrTreat.observe(observer)
   }

   // Obsolete: Returning a `Disposable`.
   let candies = Signal { (observer: Signal<U, E>.Observer) -> Disposable? in
      return trickOrTreat.observe(observer)
   }

    🚦 1. SignalProducer.startWithSignal now returns the value of the setup closure. (#533, kudos to @Burgestrand)