[swift-evolution] [Proposal] Swift 2.2: #if swift language version

[Radosław Pietruszewski]

But the thing is, right now it’s not just new features that show up in new releases. We also have breaking syntax changes.

Feature detection make more sense in the future (perhaps one day we could have an “unstable” Swift branch with experimental features), but right now version detection makes more sense.

— Radek

> On 20 Dec 2015, at 20:28, James Campbell via swift-evolution <swift-evolution at swift.org> wrote:
> 
> I think we should be moving towards feature detection over swift version detection

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