Download swiftly for Linux (Intel), or Linux (ARM).

curl -O https://download.swift.org/swiftly/linux/swiftly-1.0.0-$(uname -m).tar.gz

You can verify the integrity of the archive using the PGP signature. This will download the signature, install the swift.org signatures into your keychain, and verify the signature.

curl https://www.swift.org/keys/all-keys.asc | gpg --import -
curl -O https://download.swift.org/swiftly/linux/swiftly-1.0.0-$(uname -m).tar.gz.sig
gpg --verify swiftly-1.0.0-$(uname -m).tar.gz.sig swiftly-1.0.0-$(uname -m).tar.gz

Extract the archive.

tar -zxf swiftly-1.0.0-$(uname -m).tar.gz

Run the following command in your terminal, to configure swiftly for your account, and automatically download the latest swift toolchain.

./swiftly init

Note: You can set the SWIFTLY_HOME_DIR and SWIFTLY_BIN_DIR environment variables to customize your install location.

Your current shell may need some additional steps to update your session. Follow the guidance at the end of the installation for a smooth install experience, such as sourcing the environment file, and rehashing your shell’s PATH.

There can be certain packages that need to be installed on your system so that the Swift toolchain can function. The swiftly initialization routine will show you how to install any missing packages.

Now that swiftly and swift are installed, you can access the swift command from the latest Swift release:

swift --version
--
Swift version 6.1 (swift-6.1-RELEASE)
Target: x86_64-unknown-linux-gnu

Or, you can install (and use) another swift release:

swiftly install --use 5.10
swift --version
--
Swift version 5.10 (swift-5.10-RELEASE)
Target: x86_64-unknown-linux-gnu

There’s also an option to install the latest snapshot release and get access to the latest features:

swiftly install --use main-snapshot

Check for updates to swiftly and install them by running the self-update command:

swiftly self-update

You can discover more about swiftly in the documentation