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docs: complete v6 release highlights (#1254)

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Bruno Borges
2026-08-24 12:03:01 -04:00
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commit 85030b78b5
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@@ -48,13 +48,17 @@ steps:
### V6
- Migrated the action implementation to ESM to support the latest `@actions/*` packages.
- Added the `oracle-openjdk`, `redhat`, and `liberica-nik` distributions.
- Added Oracle OpenJDK (`oracle-openjdk`), Red Hat Build of OpenJDK (`redhat`), and Liberica Native Image Kit (`liberica-nik`), and expanded Tencent Kona support through JDK 25.
- Added `java-version: latest` to resolve the newest stable GA release from the distribution's remote metadata.
- Expanded install compatibility with JEP 322 multi-field versions such as `18.0.1.1`, Temurin `jdk+jmods` packages, and native musl artifacts on Alpine for Dragonwell, Corretto, Zulu, and Liberica.
- JDK downloads now automatically verify authoritative checksums, and package signature verification defaults to enabled for Temurin and Microsoft builds.
- Added `force-download: true` to bypass the tool cache and perform a reproducible fresh install.
- Dependency caching now supports custom paths with `cache-path` and restore-only operation with `cache-read-only: true`.
- Dependency cache keys now include `.mvn/extensions.xml` and `gradle.properties`, preventing stale restores when Maven extensions or Gradle dependency properties change.
- Downloaded JDKs are now [cached](#caching-jdk-installations) automatically when `cache` is set; use `cache-jdk` to enable or disable it independently.
- Warm JDK-cached jobs can reuse cached release metadata, avoiding vendor API calls while retaining a stale-metadata fallback for vendor outages and rate limits.
- Maven configuration now supports multiple server credentials and custom dependency-resolution repositories.
- Maven signing keys are imported into an isolated temporary GPG home instead of the runner's default keyring.
- Set `problem-matcher: false` to disable Java compiler and uncaught-exception annotations.
- GraalVM distributions now set `GRAALVM_HOME` in addition to `JAVA_HOME`.
- Invalid boolean values, unsupported distribution/package/platform combinations, and mismatched Maven toolchain ID counts now fail with targeted errors.
@@ -65,6 +69,7 @@ steps:
- Deprecated aliases still work, but emit warnings.
- Maven GPG passphrases are now passed through `gpg.passphraseEnvName` instead of a deprecated `gpg.passphrase` server entry in `settings.xml`. This requires `maven-gpg-plugin` 3.2.0 or newer. See [GPG](docs/advanced-usage.md#gpg).
- Legacy AdoptOpenJDK distributions were removed. Use `temurin` instead of `adopt` or `adopt-hotspot`, and `semeru` instead of `adopt-openj9`.
- See the [complete V6 release notes](https://github.com/actions/setup-java/releases/tag/v6.0.0) for all enhancements and fixes.
### V5