How do I see which version of Swift I m using

Question

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

User · Answer

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   system  swift Welcome to Apple Swift version 5 1  swiftlang-1100 0 270 13 clang-1100 0 33 7   Type  help for assistance

User · Answer

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

User · Answer

hi frind code type in terminal swift -v print teminal Welcome to Apple Swift version 5 2 4  swiftlang-1103 0 32 9 clang-1103 0 32 53

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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

User · Answer

Open the Terminal and write   swift -version

User · Answer

if you want to check the run code for a particular version of swift you can use  if compiler  gt  5 1    4 2  3 0  2 0 replace whatever swft version you wants to check  endif

User · Answer

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

User · Answer

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

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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

User · Answer

Select your project Build Setting search for  swift language  now you can see which swift version you are using in your project   https   i stack imgur com Ojn3m png

User · Answer

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

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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

User · Answer

You will get this under the project setting

User · Answer

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  gt  5 3  print  quot Hello  Swift 5 3 quot     elseif swift  gt  5 2  print  quot Hello  Swift 5 2 quot     elseif swift  gt  5 1  print  quot Hello  Swift 5 1 quot     elseif swift  gt  5 0  print  quot Hello  Swift 5 0 quot     elseif swift  gt  4 2  print  quot Hello  Swift 4 2 quot     elseif swift  gt  4 1  print  quot Hello  Swift 4 1 quot     elseif swift  gt  4 0  print  quot Hello  Swift 4 0 quot     elseif swift  gt  3 2  print  quot Hello  Swift 3 2 quot     elseif swift  gt  3 0  print  quot Hello  Swift 3 0 quot     elseif swift  gt  2 2  print  quot Hello  Swift 2 2 quot     elseif swift  gt  2 1  print  quot Hello  Swift 2 1 quot     elseif swift  gt  2 0  print  quot Hello  Swift 2 0 quot     elseif swift  gt  1 2  print  quot Hello  Swift 1 2 quot     elseif swift  gt  1 1  print  quot Hello  Swift 1 1 quot     elseif swift  gt  1 0  print  quot Hello  Swift 1 0 quot     endif  Here is result using Playground  with Xcode 11 x

User · Answer

usr bin swiftc --version   and swift version  lt --  Xcode version

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

User · Answer

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  gt  Header  Scroll down to Swift Compiler - Language  and look at the dropdown

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

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