Reputation: 10089

How do I see which version of Swift I'm using?

I just created a new Swift project within Xcode. I am wondering which version of Swift it's using.

How can I see, in Xcode or the terminal, what version of Swift I am using inside my project?

Upvotes: 757

Answers (19)

Krunal

Reputation: 79746

Project build settings have a block 'Swift Compiler - Languages', which stores information about Swift Language Version in key-value format. It will show you all available (supported) Swift Language Version for your Xcode and active version also by a tick mark.

Project ► (Select Your Project Target) ► Build Settings ► (Type 'swift_version' in the Search bar) Swift Compiler Language ► Swift Language Version ► Click on Language list to open it (and there will be a tick mark on any one of list-item, that will be current swift version).

Look at this snapshot, for easy understanding:

With help of following code, programmatically you can find Swift version supported by your project.

#if swift(>=5.10)
print("Hello, Swift 5.10")

#elseif swift(>=5.9)
print("Hello, Swift 5.9")

#elseif swift(>=5.8)
print("Hello, Swift 5.8")

#elseif swift(>=5.7)
print("Hello, Swift 5.7")

#elseif swift(>=5.6)
print("Hello, Swift 5.6")

#elseif swift(>=5.5)
print("Hello, Swift 5.5")

#elseif swift(>=5.4)
print("Hello, Swift 5.4")

#elseif swift(>=5.3)
print("Hello, Swift 5.3")

#elseif swift(>=5.2)
print("Hello, Swift 5.2")

#elseif swift(>=5.1)
print("Hello, Swift 5.1")

#elseif swift(>=5.0)
print("Hello, Swift 5.0")

#elseif swift(>=4.2)
print("Hello, Swift 4.2")

#elseif swift(>=4.1)
print("Hello, Swift 4.1")

#elseif swift(>=4.0)
print("Hello, Swift 4.0")

#elseif swift(>=3.2)
print("Hello, Swift 3.2")

#elseif swift(>=3.0)
print("Hello, Swift 3.0")

#elseif swift(>=2.2)
print("Hello, Swift 2.2")

#elseif swift(>=2.1)
print("Hello, Swift 2.1")

#elseif swift(>=2.0)
print("Hello, Swift 2.0")

#elseif swift(>=1.2)
print("Hello, Swift 1.2")

#elseif swift(>=1.1)
print("Hello, Swift 1.1")

#elseif swift(>=1.0)
print("Hello, Swift 1.0")

#endif

Here is result using Playground (with Xcode 11.x)

PLEASE NOTE:
Building your code as Swift 4 in Xcode doesn't actually switch to a Swift 4 compiler, it just tells the compiler to try to apply the same language rules that the Swift 4 compiler would have used.

Upvotes: 596

mansoor.khan

Reputation: 2616

I was able to find the version of the swift from the terminal by the following command:

swift -version. You can also type swift --help to see more commands you can use with swift language on the terminal.

Another way to find and make sure that XCode is indeed using that same version of swift is to go to the project's build setting and check the Swift Language version under the Swift Compiler - Language section. Refer screenshot below:

Upvotes: 4

cool_jb

Reputation: 259

Typing

$ swift -v

on the terminal would give you the version in this format

swift-driver version: 1.62.15 Apple Swift version 5.7.2 (swiftlang-5.7.2.135.5 clang-1400.0.29.51)
Target: x86_64-apple-macosx12.0

And if you want to see the version on the Xcode, then you can refer to below the screenshot

Upvotes: 0

developerjavad

Reputation: 332

Type in terminal

$ swift -v

Output in terminal

Welcome to Apple Swift version 5.2.4 (swiftlang-1103.0.32.9 clang-1103.0.32.53).

Upvotes: 3

SuperNova

Reputation: 27486

By just entering swift command in the terminal, it will show the version, while logging to Swift console.(something like below)

System-IOSs-MacBook-Air swift
Welcome to Apple Swift version 5.1 (swiftlang-1100.0.270.13 clang-1100.0.33.7).
Type :help for assistance.

Upvotes: -2

Alpana

Reputation: 983

In case anyone is looking for quick one-to-one mapping of Swift version based on Xcode Version:

Xcode 13.4.1 :      Swift version 5.6.1

Xcode 13.2   :      Swift version 5.5.2

Xcode 12.5   :      Swift version 5.4.2

Xcode 12.3   :      Swift version 5.3.2

Xcode 12.2   :      Swift version 5.3.1

Xcode 11.6   :      Swift version 5.2.4

Xcode 11.5   :      Swift version 5.2.4

Xcode 11.4   :      Swift version 5.2

Xcode 11.3   :      Swift version 5.1.3

Xcode 11.2.1 :      Swift version 5.1.2

Xcode 11.1   :      Swift version 5.1

Obtained with running following command as mentioned on different Xcode versions:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift --version

Upvotes: 24

Ruchin Somal

Reputation: 1103

Either you can run a command on terminal

xcrun swift -version

You can refer below table to check which Xcode is using which version of swift language.

Xcode 13.4.1 :      Swift version 5.6.1

Xcode 13.3   :      Swift version 5.6

Xcode 13.2   :      Swift version 5.5.2

Xcode 12.5   :      Swift version 5.4.2

Xcode 12.3   :      Swift version 5.3.2

Xcode 12.2   :      Swift version 5.3.1

Xcode 11.6   :      Swift version 5.2.4

Xcode 11.5   :      Swift version 5.2.4

Xcode 11.4   :      Swift version 5.2

Xcode 11.3   :      Swift version 5.1.3

Xcode 11.2.1 :      Swift version 5.1.2

Xcode 11.1   :      Swift version 5.1

Upvotes: 8

Navdeep Paliwal

Reputation: 379

if you want to check the run code for a particular version of swift you can use

#if compiler(>=5.1) //4.2, 3.0, 2.0 replace whatever swft version you wants to check
#endif

Upvotes: 2

Joshua Dance

Reputation: 10512

Updated answer for how to find which version of Swift your project is using in a few click in Xcode 12 to help out rookies like me.

Click on your Project (top level Blue Icon in the left hand pane)
Click on Build Settings (5th item in the Project > Header)
Scroll down to Swift Compiler - Language, and look at the dropdown.

Upvotes: 1

viral goti

Reputation: 103

Select your project
Build Setting
search for "swift language"
now you can see which swift version you are using in your project

https://i.sstatic.net/Ojn3m.png

Upvotes: -4

Jimmy KD

Reputation: 773

/usr/bin/swiftc --version

and swift version <--> Xcode version

Upvotes: 10

korakot

Reputation: 40898

I am using Swift from Google Colab. Here's how to check it in Colab.

!/swift/toolchain/usr/bin/swift --version

The result is 5.0-dev

Upvotes: 3

user3810044

Reputation:

Bonus contribution: I'm using a custom node.js script to extract a clean string for use with Jazzy documentation. You might get some use of this if you can find a place to work it into your dev process:

Invoked from a Bash script:

#!/bin/bash
swiftversion=$(node SwiftVerSlicer.js "${xcrun swift -version}");
echo $swiftversion

SwiftVerSlicer.js:

// begin script
const inputString = `${process.argv[2]}`
let searchTerm = (inputString.indexOf('(') - 1)//-1 cause whitespace
let version = inputString.slice(0,searchTerm)
console.log(version)
// end script

You can also use regex of course, but do whatever you like :]

Upvotes: -3

Paul King

Reputation: 2011

To see the default version of swift installed on your machine then from the command line, type the following :

swift --version

Apple Swift version 4.1.2 (swiftlang-902.0.54 clang-902.0.39.2)

Target: x86_64-apple-darwin17.6.0

This is most likely the version that is included in the app store version of Xcode that you have installed (unless you have changed it).

If you want to determine the actual version of Swift being used by a particular version of Xcode (a beta, for instance) then from the command line, invoke the swift binary within the Xcode bundle and pass it the parameter --version

/Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift --version

Apple Swift version 4.2 (swiftlang-1000.0.16.7 clang-1000.10.25.3)

Target: x86_64-apple-darwin17.6.0

Upvotes: 25

Aditya Deshmane

Reputation: 4722

From Xcode 8.3 onward Build Settings has key Swift Language Version with a value of swift version your target is using.

For older Xcodes use this solution, open terminal and type following command(s)

Case 1: You have installed only one Xcode App

swift -version

Case 2: You have installed multiple Xcode Apps

Switch active developer directory (Replace Xcode_7.3.app from following command with your Xcode app file name from Application directory for which you want to check swift version)
```
 sudo xcode-select --switch /Applications/Xcode_7.3.app/Contents/Developer
```
Then
```
 swift -version
```

NOTE: From Xcode 8 to Xcode 8.2.x you can use swift 2.3 even though Xcode 8 uses swift 3.x as default swift version. To use swift 2.3, just turn on flag Use Legacy Swift Language Version to YES from Build Setting and XCode will use Swift 2.3 for that project target.

Upvotes: 73

joern

Reputation: 27620

You can see and select which Swift version Xcode is using in:

Target -> Build Settings -> Swift Language Version:

This is available in Xcode 8.3 and Xcode 9 (haven't checked older versions)

Upvotes: 26

Abdulrazzaq Alzayed

Reputation: 1623

Open the Terminal and write:

swift -version

Upvotes: 135

alexisSchreier

Reputation: 677

This reddit post helped me: https://www.reddit.com/r/swift/comments/4o8atc/xcode_8_which_swift/d4anpet

Xcode 8 uses Swift 3.0 as default. But you can turn on Swift 2.3. Go to project's Build Settings and set 'Use Legacy Swift Language Version' to YES.

Good old reddit :)

Upvotes: 19

matt

Reputation: 535880

What I do is say in the Terminal:

$ xcrun swift -version

Output for Xcode 6.3.2 is:

Apple Swift version 1.2 (swiftlang-602.0.53.1 clang-602.0.53)

Of course that assumes that your xcrun is pointing at your copy of Xcode correctly. If, like me, you're juggling several versions of Xcode, that can be a worry! To make sure that it is, say

$ xcrun --find swift

and look at the path to Xcode that it shows you. For example:

/Applications/Xcode.app/...

If that's your Xcode, then the output from -version is accurate. If you need to repoint xcrun, use the Command Line Tools pop-up menu in Xcode's Locations preference pane.

Upvotes: 639

How do I see which version of Swift I&#39;m using?

Answers (19)

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How do I see which version of Swift I'm using?