Download Swift

Releases

Swift 5.3

Date: September 16, 2020

Tag: swift-5.3-RELEASE

1 Swift 5.3 is available as part of Xcode 12.



Snapshots

Trunk Development (master)

Development Snapshots are prebuilt binaries that are automatically created from mainline development branches. These snapshots are not official releases. They have gone through automated unit testing, but they have not gone through the full testing that is performed for official releases.

Swift 5.3 Development

Swift 5.3 Snapshots are prebuilt binaries that are automatically created from release/5.3 branch. These snapshots are not official releases. They have gone through automated unit testing, but they have not gone through the full testing that is performed for official releases.

Swift 5.2 Development

Swift 5.2 Snapshots are prebuilt binaries that are automatically created from swift-5.2-branch branch. These snapshots are not official releases. They have gone through automated unit testing, but they have not gone through the full testing that is performed for official releases.

Swift is covered by the Swift License at swift.org/LICENSE.txt.

Using Downloads

Apple Platforms

Xcode includes a release of Swift that is supported by Apple. You can try out a version that is still in development by downloading one of the packages above.

To submit to the App Store you must build your app using the version of Swift that comes included within Xcode.

Swift 5.1

macOS 10.14.6

Xcode 11 or later

Swift 5.0

Swift 4.2

Swift 4.1

Swift 4.0

Swift 3.1

Swift 3.0

Swift 2.2.x

Supported Target Platforms

macOS 10.9.0 or later

iOS 7.0 or later

watchOS 2.0 or later

tvOS 9.0 or later

Installation

Download the latest package release. Run the package installer, which will install an Xcode toolchain into /Library/Developer/Toolchains/ . An Xcode toolchain ( .xctoolchain ) includes a copy of the compiler, lldb, and other related tools needed to provide a cohesive development experience for working in a specific version of Swift. Open Xcode’s Preferences , navigate to Components > Toolchains , and select the installed Swift toolchain. Xcode uses the selected toolchain for building Swift code, debugging, and even code completion and syntax coloring. You’ll see a new toolchain indicator in Xcode’s toolbar when Xcode is using a Swift toolchain. Select the Xcode toolchain to go back to Xcode’s built-in tools. Selecting a Swift toolchain affects the Xcode IDE only. To use the Swift toolchain with command-line tools, use xcrun --toolchain swift and xcodebuild -toolchain swift , or add the Swift toolchain to your path as follows:

$ export PATH = /Library/Developer/Toolchains/swift-latest.xctoolchain/usr/bin: " ${ PATH } "

Code Signing on macOS

The macOS .pkg files are digitally signed by the developer ID of the Swift open source project to allow verification that they have not been tampered with. All binaries in the package are signed as well.

The Swift toolchain installer on macOS should display a lock icon on the right side of the title bar. Clicking the lock brings up detailed information about the signature. The signature should be produced by Developer ID Installer: Swift Open Source (V9AUD2URP3) .

If the lock is not displayed or the signature is not produced by the Swift open source developer ID, do not proceed with the installation. Instead, quit the installer and please email swift-infrastructure@forums.swift.org with as much detail as possible, so that we can investigate the problem.

Linux

Packages for Linux are tar archives including a copy of the Swift compiler, lldb, and related tools. You can install them anywhere as long as the extracted tools are in your PATH .

Note that nothing prevents Swift from being ported to other Linux distributions beyond the ones mentioned below. These are only the distributions where these binaries have been built and tested.

Requirements

Ubuntu 16.04, 18.04 or 20.04 (64-bit)

CentOS 7, 8

Amazon Linux 2

Supported Target Platforms

Ubuntu 16.04, 18.04 or 20.04 (64-bit)

CentOS 7, 8

Amazon Linux 2

Installation

Install required dependencies:

Ubuntu 16.04 Ubuntu 18.04 Ubuntu 20.04 CentOS 7 CentOS 8 Amazon Linux 2 $ apt-get install \ binutils \ git \ libc6-dev \ libcurl3 \ libedit2 \ libgcc-5-dev \ libpython2.7 \ libsqlite3-0 \ libstdc++-5-dev \ libxml2 \ pkg-config \ tzdata \ zlib1g-dev $ apt-get install \ binutils \ git \ libc6-dev \ libcurl4 \ libedit2 \ libgcc-5-dev \ libpython2.7 \ libsqlite3-0 \ libstdc++-5-dev \ libxml2 \ pkg-config \ tzdata \ zlib1g-dev $ apt-get install \ binutils \ git \ gnupg2 \ libc6-dev \ libcurl4 \ libedit2 \ libgcc-9-dev \ libpython2.7 \ libsqlite3-0 \ libstdc++-9-dev \ libxml2 \ libz3-dev \ pkg-config \ tzdata \ zlib1g-dev $ yum install \ binutils \ gcc \ git \ glibc-static \ libbsd-devel \ libedit \ libedit-devel \ libicu-devel \ libstdc++-static \ pkg-config \ python2 \ sqlite # __block conflicts with clang's __block qualifier sed -i -e 's/\*__block/\*__libc_block/g' /usr/include/unistd.h $ yum install \ binutils \ gcc \ git \ glibc-static \ libbsd-devel \ libedit \ libedit-devel \ libicu-devel \ libstdc++-static \ pkg-config \ python2 \ sqlite $ yum install \ binutils \ gcc \ git \ glibc-static \ gzip \ libbsd \ libcurl \ libedit \ libicu \ libsqlite \ libstdc++-static \ libuuid \ libxml2 \ tar \ tzdata

Download the latest binary release above. The swift-<VERSION>-<PLATFORM>.tar.gz file is the toolchain itself. The .sig file is the digital signature. If you are downloading Swift packages for the first time, import the PGP keys into your keyring: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ '7463 A81A 4B2E EA1B 551F FBCF D441 C977 412B 37AD' \ '1BE1 E29A 084C B305 F397 D62A 9F59 7F4D 21A5 6D5F' \ 'A3BA FD35 56A5 9079 C068 94BD 63BC 1CFE 91D3 06C6' \ '5E4D F843 FB06 5D7F 7E24 FBA2 EF54 30F0 71E1 B235' \ '8513 444E 2DA3 6B7C 1659 AF4D 7638 F1FB 2B2B 08C4' \ 'A62A E125 BBBF BB96 A6E0 42EC 925C C1CC ED3D 1561' \ '8A74 9566 2C3C D4AE 18D9 5637 FAF6 989E 1BC1 6FEA' or: $ wget -q -O - https://swift.org/keys/all-keys.asc | \ gpg --import - Skip this step if you have imported the keys in the past. Verify the PGP signature. The .tar.gz archives for Linux are signed using GnuPG with one of the keys of the Swift open source project. Everyone is strongly encouraged to verify the signatures before using the software. First, refresh the keys to download new key revocation certificates, if any are available: $ gpg --keyserver hkp://pool.sks-keyservers.net --refresh-keys Swift Then, use the signature file to verify that the archive is intact: $ gpg --verify swift-<VERSION>-<PLATFORM>.tar.gz.sig ... gpg: Good signature from "Swift Automatic Signing Key #3 <swift-infrastructure@swift.org>" If gpg fails to verify because you don’t have the public key ( gpg: Can't check signature: No public key ), please follow the instructions in Active Signing Keys below to import the keys into your keyring. You might see a warning: gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. This warning means that there is no path in the Web of Trust between this key and you. The warning is harmless as long as you have followed the steps above to retrieve the key from a trusted source. If gpg fails to verify and reports “BAD signature”, do not use the downloaded toolchain. Instead, please email swift-infrastructure@forums.swift.org with as much detail as possible, so that we can investigate the problem. Extract the archive with the following command: $ tar xzf swift-<VERSION>-<PLATFORM>.tar.gz This creates a usr/ directory in the location of the archive. Add the Swift toolchain to your path as follows: $ export PATH = /path/to/usr/bin: " ${ PATH } " You can now execute the swift command to run the REPL or build Swift projects.

Active Signing Keys

The Swift project uses one set of keys for snapshot builds, and separate keys for every official release. We are using 4096-bit RSA keys.

The following keys are being used to sign toolchain packages:

Swift Automatic Signing Key #3 <swift-infrastructure@swift.org> Download https://swift.org/keys/automatic-signing-key-3.asc Fingerprint 8A74 9566 2C3C D4AE 18D9 5637 FAF6 989E 1BC1 6FEA Long ID FAF6989E1BC16FEA To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ '8A74 9566 2C3C D4AE 18D9 5637 FAF6 989E 1BC1 6FEA' Or: $ wget -q -O - https://swift.org/keys/automatic-signing-key-3.asc | \ gpg --import -

Swift 2.2 Release Signing Key <swift-infrastructure@swift.org> Download https://swift.org/keys/release-key-swift-2.2.asc Fingerprint 1BE1 E29A 084C B305 F397 D62A 9F59 7F4D 21A5 6D5F Long ID 9F597F4D21A56D5F To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ '1BE1 E29A 084C B305 F397 D62A 9F59 7F4D 21A5 6D5F' Or: $ wget -q -O - https://swift.org/keys/release-key-swift-2.2.asc | \ gpg --import -

Swift 3.x Release Signing Key <swift-infrastructure@swift.org> Download https://swift.org/keys/release-key-swift-3.x.asc Fingerprint A3BA FD35 56A5 9079 C068 94BD 63BC 1CFE 91D3 06C6 Long ID 63BC1CFE91D306C6 To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ 'A3BA FD35 56A5 9079 C068 94BD 63BC 1CFE 91D3 06C6' Or: $ wget -q -O - https://swift.org/keys/release-key-swift-3.x.asc | \ gpg --import -

Swift 4.x Release Signing Key <swift-infrastructure@swift.org> Download https://swift.org/keys/release-key-swift-4.x.asc Fingerprint 5E4D F843 FB06 5D7F 7E24 FBA2 EF54 30F0 71E1 B235 Long ID EF5430F071E1B235 To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ '5E4D F843 FB06 5D7F 7E24 FBA2 EF54 30F0 71E1 B235' Or: $ wget -q -O - https://swift.org/keys/release-key-swift-4.x.asc | \ gpg --import -

Swift 5.x Release Signing Key <swift-infrastructure@swift.org> Download https://swift.org/keys/release-key-swift-5.x.asc Fingerprint A62A E125 BBBF BB96 A6E0 42EC 925C C1CC ED3D 1561 Long ID 925CC1CCED3D1561 To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ 'A62A E125 BBBF BB96 A6E0 42EC 925C C1CC ED3D 1561' Or: $ wget -q -O - https://swift.org/keys/release-key-swift-5.x.asc | \ gpg --import -

Expired Signing Keys

Swift Automatic Signing Key #2 <swift-infrastructure@swift.org> Download https://swift.org/keys/automatic-signing-key-2.asc Fingerprint 8513 444E 2DA3 6B7C 1659 AF4D 7638 F1FB 2B2B 08C4 Long ID 7638F1FB2B2B08C4 To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ '8513 444E 2DA3 6B7C 1659 AF4D 7638 F1FB 2B2B 08C4' Or: $ wget -q -O - https://swift.org/keys/automatic-signing-key-2.asc | \ gpg --import -

Swift Automatic Signing Key #1 <swift-infrastructure@swift.org> Download https://swift.org/keys/automatic-signing-key-1.asc Fingerprint 7463 A81A 4B2E EA1B 551F FBCF D441 C977 412B 37AD Long ID D441C977412B37AD To import the key, run: $ gpg --keyserver hkp://pool.sks-keyservers.net \ --recv-keys \ '7463 A81A 4B2E EA1B 551F FBCF D441 C977 412B 37AD' Or: $ wget -q -O - https://swift.org/keys/automatic-signing-key-1.asc | \ gpg --import -

Docker

Swift offical Docker images are hosted on hub.docker.com/_/swift.

Swift Dockerfiles are located on swift-docker repository.

Supported Platforms

Ubuntu 16.04

Ubuntu 18.04

Using Docker Images