ARTICLE AD BOX
I figured it out that Yes it is possible. You can achieve it by installing the latest Snapshot:
Development Snapshots are prebuilt binaries that are automatically created from mainline development branches.
https://swift.org/download/#snapshots
Snapshot is a toolchain that you can install into Xcode which contains the latest compiler, leading to let you able to build your app on the latest tools.
How to setup a snapshot into Xcode?
1- Download the latest snapshot (Xcode) from Swift website.
2- Install the downloaded snapshot .pkg file.
3- Run Xcode and then go to: Xcode -> Toolchains -> Manage toolchains.
4- After selecting "Components" - "Toolchains" options, you should see:
Select "Swift Developer Snapshot" and thats it! You might need to reset Xcode after doing the above steps.
Reminder: You should reselect "Xcode 8.3.3" option after done playing around Swift 4, as mentioned in Swift - Using Downloads section:
To submit to the App Store you must build your app using the version of Swift that comes included within Xcode.
