Change default Scala version to 3.8.3

This Scala CLI version switches the default Scala version to 3.8.3.

scala-cli version
# Scala CLI version: 1.13.0
# Scala version (default): 3.8.3

Added by @Gedochao in #4204

Support for Scala.js 1.21.0

This Scala CLI version adds support for Scala.js 1.21.0.

scala-cli -e 'println("Hello")' --js
# Compiling project (Scala 3.8.3, Scala.js 1.21.0)
# Compiled project (Scala 3.8.3, Scala.js 1.21.0)
# Hello

Added by @Gedochao in #4229

Ammonite REPL deprecated & scheduled for removal

The Ammonite-backed REPL integration is now deprecated and planned for removal (in sync with Ammonite's official communication).
Flags such as --ammonite, --ammonite-version, and --ammonite-arg on scala-cli repl will go away in a future release.

It's time to move on to the default Scala REPL.

Added by @Gedochao in #4218

java-test-runner for pure Java tests

Projects with only Java sources (no Scala in the build) now use a dedicated java-test-runner module when running scala-cli test.
The new runner wires up Java-friendly test frameworks (such as JUnit via junit-interface) without pulling the Scala test runner or Scala itself onto the test classpath.

//> using test.dep junit:junit:4.13.2
//> using test.dep com.novocode:junit-interface:0.11
import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class JavaTestRunnerExample {
  @Test
  public void foo() {
    assertEquals(4, 2 + 2);
  }
}

Added by @Gedochao in #4197

GraalVM native-image packaging: packaging.graalvmJvmId and packaging.graalvmArgs

GraalVM native-image packaging JVM id and args are now configurable from using directive level.

//> using packaging.packageType graalvm
//> using packaging.graalvmJvmId graalvm-community:23.0.2
//> using packaging.graalvmArgs --no-fallback

Added by @zrhmn in #4223 & #4225

Features

• Add java-test-runner module to support running tests with pure Java by @Gedochao in #4197
• Support -opt-inline:help by @Gedochao in #4215
• Add directive packaging.graalvmJvmId by @zrhmn in #4223
• Add additional packaging.graalvm* directives by @zrhmn in #4225

Deprecations

• Add proper deprecation logic for features & deprecate Ammonite for removal by @Gedochao in #4218

Fixes

• Add signed-by support to Debian APT repository by @Gedochao in #4207
• Add missing attributes to ivy2 publishing by @Gedochao in #4203
• Fix misc compiler warnings by @Gedochao in #4220
• Make each packaged native image use its own subdirectory under nativeImageWorkDir when cross-packaging by @Gedochao in #4221
• Support formatting .sbt inputs by @Gedochao in #4195

Build and internal changes

• Skip CI steps irrelevant to committed changes on PRs by @Gedochao in #4208
• Run tests with JDK 26 by @Gedochao in #4214
• Split release_notes.md into a separate test per-release-tag in docs-tests by @Gedochao in #4216

Updates

• Update scala-cli.sh launcher for 1.12.5 by @github-actions[bot] in #4191
• Bump Scala 3 Next RC to 3.8.3-RC3 by @Gedochao in #4194
• Bump dorny/test-reporter from 2 to 3 in the github-actions group by @dependabot[bot] in #4198
• Bump picomatch from 2.3.1 to 2.3.2 in /website by @dependabot[bot] in #4200
• Bump node-forge from 1.3.3 to 1.4.0 in /website by @dependabot[bot] in #4202
• Bump Scala 3 Next to 3.8.3 by @Gedochao in #4204
• Bump brace-expansion from 1.1.12 to 1.1.13 in /website by @dependabot[bot] in #4205
• Bump @algolia/client-search from 5.49.2 to 5.50.0 in /website in the npm-dependencies group by @dependabot[bot] in #4206
• Bump the npm-dependencies group in /website with 2 updates by @dependabot[bot] in #4211
• Bump lodash from 4.17.23 to 4.18.1 in /website by @dependabot[bot] in #4212
• Bump Scala 3 Next RC to 3.8.4-RC1 by @Gedochao in #4213
• Bump Mill to 1.1.5 (was 1.1.3) by @Gedochao in #4217
• Bump the npm-dependencies group in /website with 6 updates by @dependabot[bot] in #4226
• Bump follow-redirects from 1.15.11 to 1.16.0 in /website by @dependabot[bot] in #4227
• Bump announced Scala 3 Next RC version to 3.8.4-RC1 by @Gedochao in #4219
• Bump scalafmt to 3.11.0 (was 3.10.7) by @Gedochao in #4228
• Bump Scala.js to 1.21.0 by @Gedochao in #4229

New Contributors

• @zrhmn made their first contribution in #4223

Full Changelog: v1.12.5...v1.13.0