Download Scala CLI 1.12.0

Change default Scala version to 3.8.0
This Scala CLI version switches the default Scala version to 3.8.0.
scala-cli version
# Scala CLI version: 1.12.0
# Scala version (default): 3.8.0
Added by @Gedochao in #4049
Support for Scala.js 1.20.2
This Scala CLI version adds support for Scala.js 1.20.2.
scala-cli -e 'println("Hello")' --js
# Compiling project (Scala 3.8.0, Scala.js 1.20.2)
# Compiled project (Scala 3.8.0, Scala.js 1.20.2)
# Hello
Added by @Gedochao in #4040
New aliases for RC and nightly Scala versions
This Scala CLI version introduces dedicated aliases for calling the latest Scala Release Candidate versions in a given series (including LTS).
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S rc
# 3.8.1-RC1
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S 3.rc
# 3.8.1-RC1
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S 3.8.rc
# 3.8.1-RC1
scala-cli -e 'println(dotty.tools.dotc.config.Properties.simpleVersionString)' -S 3.lts.rc --with-compiler
# 3.3.7-RC2
scala-cli -e 'println(dotty.tools.dotc.config.Properties.simpleVersionString)' -S lts.rc --with-compiler
# 3.3.7-RC2
Dedicated default and LTS nightly aliases are also provided.
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S nightly
# 3.8.2-RC1-bin-20260115-6151803-NIGHTLY
scala-cli -e 'println(dotty.tools.dotc.config.Properties.simpleVersionString)' -S lts.nightly --with-compiler
# 3.3.8-RC1-bin-20260112-d35b2d4-NIGHTLY-git-d35b2d4
scala-cli -e 'println(dotty.tools.dotc.config.Properties.simpleVersionString)' -S 3.lts.nightly --with-compiler
# 3.3.8-RC1-bin-20260112-d35b2d4-NIGHTLY-git-d35b2d4
Also note that there is no easy way to identify an RC for Scala 2 / 2.12 / 2.13 (as a particular nightly serves as the RC for those Scala distributions).
A reasonable error is also provided when it is requested.
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S 2.rc
# Invalid Scala version: 2.rc. In the case of Scala 2, a particular nightly version serves as a release candidate.
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S 2.12.rc
# Invalid Scala version: 2.12.rc. In the case of Scala 2, a particular nightly version serves as a release candidate.
scala-cli -e 'println(scala.util.Properties.versionNumberString)' -S 2.13.rc
# Invalid Scala version: 2.13.rc. In the case of Scala 2, a particular nightly version serves as a release candidate.
Added by @Gedochao in #4042 and #4016
(⚡️ experimental) Support for exporting to Mill 1.0.x and overriding the Mill version with --mill-version
The export sub-command now allows to export to Mill 1.0.x projects.
@main def main() = println("Let's export to Mill 1.0.6!")
scala-cli export mill-1-0-6-export.scala --mill --mill-version 1.0.6 --power
# Exporting to a mill project...
# Exported to: ~/mill-export/dest
Added by @Gedochao in #4028
Features & improvements
- Add rc & *.rc Scala version aliases by @Gedochao in #4016
- Support export-ing to Mill 1.x.y & allow to override Mill version with --mill-version by @Gedochao in #4028
- Improve Scala nightly version handling & add lts.nightly, 3.lts.nightly and nightly Scala version tags by @Gedochao in #4042
Fixes
- Fix Scala 3.nightly and 3.latest-minor.nightly to consistently point to the same version by @Gedochao in #4014
- fix #4005 - Windows native-image compile failure caused by SUBST collision by @philwalk in #4006
Documentation changes
- Solve docs' website warnings by @Gedochao in #4007
- Back port of documentation changes to main by @github-actions[bot] in #4015
Build and internal changes
- Enable Scala Native tests with the test command on Scala 3 by @Gedochao in #4018
- Self-contained docker build with ARM64 publishing by @keynmol in #3962
Updates
- Update scala-cli.sh launcher for 1.11.0 by @github-actions[bot] in #4004
- Bump Ammonite to 3.0.6 (was 3.0.5) by @Gedochao in #4008
- Bump actions/download-artifact from 6 to 7 by @dependabot[bot] in #4009
- Bump actions/upload-artifact from 5 to 6 by @dependabot[bot] in #4010
- Bump sass from 1.95.0 to 1.96.0 in /website by @dependabot[bot] in #4011
- Bump react & react-dom from 19.2.1 to 19.2.3 in /website by @dependabot[bot] in #4012
- Bump Mill to 0.12.17 (was 0.12.16) by @Gedochao in #4020
- Bump Scala Next RC to 3.8.0-RC4 by @Gedochao in #4021
- Bump actions/checkout from 4 to 6 by @dependabot[bot] in #4024
- Bump qs from 6.14.0 to 6.14.1 in /website by @dependabot[bot] in #4032
- Bump @algolia/client-search from 5.46.0 to 5.46.2 in /website by @dependabot[bot] in #4030
- Bump sass from 1.96.0 to 1.97.1 in /website by @dependabot[bot] in #4027
- Bump actions/upload-artifact from 5 to 6 by @dependabot[bot] in #4023
- Bump actions/download-artifact from 6 to 7 by @dependabot[bot] in #4022
- Bump react-player from 2.16.1 to 3.4.0 in /website by @dependabot[bot] in #4025
- Bump Scala 3 Next RC to 3.8.0-RC5 by @Gedochao in #4033
- Migrate to Mill 1.0.6 (was 0.12.17) by @Gedochao in #4019
- Bump libsodium to 1.0.21 (partially, except for static launchers locked at 1.0.18) by @Gedochao in #4041
- Bump coursier to 2.1.25-M23 by @Gedochao in #4037
- Bump Scala 3 Next RC to 3.8.0-RC6 by @Gedochao in #4039
- Bump Scala.js to 1.20.2 by @Gedochao in #4040
- Bump sass from 1.97.1 to 1.97.2 in /website by @dependabot[bot] in #4038
- Bump alpine to 3.23 & relevant libsodium to 1.0.20 by @Gedochao in #4047
- Bump @types/react from 19.2.7 to 19.2.8 in /website by @dependabot[bot] in #4048
- Bump Scala 3 Next to 3.8.0 by @Gedochao in #4049
- Bump Scala 3 Next RC to 3.8.1-RC1 by @Gedochao in #4051
- Bump undici from 7.16.0 to 7.18.2 in /website by @dependabot[bot] in #4050
Full Changelog: v1.11.0...v1.12.0