Note that you cannot submit a binary to the App Store that was built using a custom toolchain.
Jack > On Sep 4, 2017, at 1:47 PM, Fritz Anderson via swift-users > <swift-users@swift.org> wrote: > > On 2-Sep-2017, at 5:04 AM, Mr Bee via swift-users <swift-users@swift.org > <mailto:swift-users@swift.org>> wrote: > >> Since I'm still using my old mid-2009 Macbook Pro, which is still working >> very well by the way, I'm stucked with macOS El Capitan (10.11.6) with Xcode >> 8 and Swift 3. Hence, I also couldn't install Xcode 9 and Swift 4 because >> they required at least macOS Sierra (10.12). >> >> So, is there any other way to install Swift 4 manually and make it working >> with Xcode 8 that I got on my Mac? I know I'll miss some IDE features of >> Xcode 9 but it's alright as long as I can use Swift 4 with old SDKs. >> >> Any hints? Thank you. > > In your position, I’d go to the Downloads part of Swift.org > <http://swift.org/> and fetch the latest build of the Swift 4 toolchain for > Mac. (It’s still in flux, but it’ll probably be promoted to latest/stable > this month.) > > Install the toolchain. This adds a Toolchains tab to the Components section > of the Preferences window. Select Swift 4.0 Snapshot. > > That should do for you, but I don’t have exactly your hardware and OS. When > you say you “couldn’t install Xcode 9 and Swift 4,” you may mean that you > couldn’t install Swift 4 even separately. > > — F > > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users
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