Merge pull request #6 from ruby/master

upstream sync

Author: prajjwaldimri

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-24.04, ubuntu-22.04-arm, ubuntu-24.04-arm, macos-13, macos-14, macos-15, windows-2019, windows-2022, windows-2025 ]
+        os: [ ubuntu-22.04, ubuntu-24.04, ubuntu-22.04-arm, ubuntu-24.04-arm, macos-13, macos-14, macos-15, windows-2019, windows-2022, windows-2025 ]
         ruby: [
           '1.9', '2.0', '2.1', '2.2', '2.3', '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', '3.3', '3.4', ruby-head,
           jruby, jruby-head,
@@ -286,7 +286,7 @@ jobs:
 
   testFixedBundlerVersionForOldRuby:
     name: "Test bundler: 1.x for old Ruby"
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - uses: ./
@@ -411,7 +411,7 @@ jobs:
         run: ruby -e "abort if File.exist?('C:/msys64/mingw64/bin/gcc.exe')"
 
   lint:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
     - run: yarn install

README.md

@@ -15,8 +15,8 @@ This action currently supports these versions of MRI, JRuby and TruffleRuby:
 
 | Interpreter | Versions |
 | ----------- | -------- |
-| `ruby` | 1.9.3, 2.0.0, 2.1.9, 2.2, all versions from 2.3.0 until 3.4.2, head, debug, mingw, mswin, ucrt |
-| `jruby` | 9.1.17.0 - 9.4.12.0, head |
+| `ruby` | 1.9.3, 2.0.0, 2.1.9, 2.2, all versions from 2.3.0 until 3.5.0-preview1, head, debug, mingw, mswin, ucrt |
+| `jruby` | 9.1.17.0 - 10.0.0.0, head |
 | `truffleruby` | 19.3.0 - 24.2.0, head |
 | `truffleruby+graalvm` | 21.2.0 - 24.2.0, head |
 
@@ -53,15 +53,17 @@ The action works on these [GitHub-hosted runners](https://docs.github.com/en/act
 | macOS   | `macos-13` and newer versions |
 | Windows | `windows-2019`, `windows-2022` |
 
+Not all combinations of runner images and versions are supported.
+The list of available Ruby versions can be seen in [ruby-builder-versions.json](ruby-builder-versions.json) for Ubuntu and macOS
+(although some combinations are not available, see [the full list](https://github.com/ruby/ruby-builder/releases/tag/toolcache))
+and in [windows-versions.json](windows-versions.json) for Windows.
+
 The prebuilt releases are generated by [ruby-builder](https://github.com/ruby/ruby-builder)
 and on Windows by [RubyInstaller2](https://github.com/oneclick/rubyinstaller2).
 The `mingw`, `ucrt` and `mswin` builds are generated by [ruby-loco](https://github.com/MSP-Greg/ruby-loco).
 `ruby-head` is generated by [ruby-dev-builder](https://github.com/ruby/ruby-dev-builder),
 `jruby-head` is generated by [jruby-dev-builder](https://github.com/ruby/jruby-dev-builder),
 `truffleruby-head` and `truffleruby+graalvm-head` are generated by [truffleruby-dev-builder](https://github.com/ruby/truffleruby-dev-builder).
-The full list of available Ruby versions can be seen in [ruby-builder-versions.json](ruby-builder-versions.json) for Ubuntu and macOS
-(although some combinations are not available, see [the full list](https://github.com/ruby/ruby-builder/releases/tag/toolcache))
-and in [windows-versions.json](windows-versions.json) for Windows.
 
 ## Usage