Add ruby-4.0.0

* See discussion in https://github.com/rake-compiler/rake-compiler/pull/247
  it is messy if that's not the case and also creates inconsistencies
  based on which Java tool/executable is used.

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       GH_TOKEN: ${{ github.token }}
       GH_REPO: ${{ github.repository }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - uses: ./

.github/workflows/test.yml

@@ -17,9 +17,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-22.04, ubuntu-24.04, ubuntu-22.04-arm, ubuntu-24.04-arm, macos-13, macos-14, macos-15, macos-15-intel, windows-2022, windows-2025, windows-11-arm ]
+        os: [ ubuntu-22.04, ubuntu-24.04, ubuntu-22.04-arm, ubuntu-24.04-arm, macos-14, macos-15, macos-15-intel, windows-2022, windows-2025, windows-11-arm ]
         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,
+          '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', '4.0', ruby-head,
           jruby-9.4, jruby, jruby-head,
           truffleruby, truffleruby-head,
           truffleruby+graalvm, truffleruby+graalvm-head
@@ -79,6 +79,10 @@ jobs:
         - { os: windows-2022, ruby: '1.9' }
         - { os: windows-2025, ruby: '1.9' }
         - { os: windows-11-arm, ruby: '1.9' }
+        # No preview builds on Windows
+        - { os: windows-2022, ruby: '4.0' }
+        - { os: windows-2025, ruby: '4.0' }
+        - { os: windows-11-arm, ruby: '4.0' }
         # TruffleRuby does not support Windows
         - { os: windows-2022, ruby: truffleruby }
         - { os: windows-2025, ruby: truffleruby }
@@ -96,7 +100,7 @@ jobs:
     name: ${{ matrix.os }} ${{ matrix.ruby }}
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: ./
       with:
@@ -202,7 +206,7 @@ jobs:
     name: "Test .ruby-version"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: echo "ruby-3.4.0" > .ruby-version
       - uses: ./
       - run: ruby -v | grep -F "ruby 3.4.0"
@@ -211,7 +215,7 @@ jobs:
     name: "Test .tool-versions"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: echo -e "nodejs 16.0.0\nruby   3.4.0" > .tool-versions
       - uses: ./
       - run: ruby -v | grep -F "ruby 3.4.0"
@@ -220,7 +224,7 @@ jobs:
     name: "Test mise.toml"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: echo -e "[tools]\nnode = '18'\nruby = '3.4.0'" > mise.toml
       - uses: ./
       - run: ruby -v | grep -F "ruby 3.4.0"
@@ -229,7 +233,7 @@ jobs:
     name: "Test with no Gemfile"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: rm Gemfile
       - uses: ./
         with:
@@ -240,7 +244,7 @@ jobs:
     name: "Test with no Gemfile but with bundler-cache"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: rm Gemfile
       - uses: ./
         with:
@@ -263,7 +267,7 @@ jobs:
         - { ruby: '2.3', expected_rubygems_version: '3.3.27' }
         - { ruby: '2.0', expected_rubygems_version: '2.7.11' }
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./
       with:
         ruby-version: ${{ matrix.ruby }}
@@ -274,7 +278,7 @@ jobs:
     name: "Test rubygems: version upgrades RubyGems to that version if the default is older"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./
       with:
         ruby-version: '2.6'
@@ -285,7 +289,7 @@ jobs:
     name: "Test rubygems: version noops if the default is newer"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./
       with:
         ruby-version: '3.1.0'
@@ -296,7 +300,7 @@ jobs:
     name: "Test rubygems: version uses the Bundler installed by the rubygems update"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: '3.1.0'
@@ -308,7 +312,7 @@ jobs:
     name: "Test bundler: 1.x for old Ruby"
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: '2.3'
@@ -319,7 +323,7 @@ jobs:
     name: "Test with a major Bundler version"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./
       with:
         ruby-version: '2.6'
@@ -330,7 +334,7 @@ jobs:
     name: "Test with a minor Bundler version"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./
       with:
         ruby-version: '2.6'
@@ -341,7 +345,7 @@ jobs:
     name: "Test with an exact Bundler version"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./
       with:
         ruby-version: '2.6'
@@ -352,7 +356,7 @@ jobs:
     name: "Test with a Bundler pre/rc version"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: '2.6'
@@ -365,7 +369,7 @@ jobs:
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/bundler-dev.gemfile
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: ruby-head
@@ -377,7 +381,7 @@ jobs:
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/bundler1.gemfile
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: '2.7'
@@ -395,7 +399,7 @@ jobs:
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: '3.2'
@@ -406,7 +410,7 @@ jobs:
     name: "Test windows-toolchain: none"
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           ruby-version: '2.7'
@@ -418,7 +422,7 @@ jobs:
   lint:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - run: yarn install
     - run: yarn run package
     - name: Check generated files are up to date

.github/workflows/update-v1-branch.yml

@@ -9,7 +9,7 @@ jobs:
   update_branch:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - run: git push origin HEAD:v1

README.md

@@ -15,7 +15,7 @@ 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 3.5.0-preview1, head, debug, mingw, mswin, ucrt |
+| `ruby` | 1.9.3, 2.0.0, 2.1.9, 2.2, all versions from 2.3.0 until 4.0.0, head, debug, mingw, mswin, ucrt |
 | `jruby` | 9.1.17.0 - 10.0.2.0, head |
 | `truffleruby` | 19.3.0 - 25.0.0, head |
 | `truffleruby+graalvm` | 21.2.0 - 25.0.0, head |
@@ -50,7 +50,7 @@ The action works on these [GitHub-hosted runners](https://docs.github.com/en/act
 | Operating System | Supported |
 | ---------------- | --------- |
 | Ubuntu  | `ubuntu-22.04`, `ubuntu-24.04`, `ubuntu-22.04-arm`, `ubuntu-24.04-arm` |
-| macOS   | `macos-13` and newer versions |
+| macOS   | `macos-14` and newer versions |
 | Windows | `windows-2022`, `windows-2025`, `windows-11-arm` |
 
 Not all combinations of runner images and versions are supported.

bundler.js

@@ -1,4 +1,5 @@
 const fs = require('fs')
+const os = require('os')
 const path = require('path')
 const core = require('@actions/core')
 const exec = require('@actions/exec')
@@ -66,17 +67,15 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
     }
   }
 
-  const floatVersion = common.floatVersion(rubyVersion)
-
   if (bundlerVersion === 'default') {
-    if (common.isBundler2dot2Default(engine, rubyVersion)) {
+    if (common.isBundler2dot2PlusDefault(engine, rubyVersion)) {
       if (common.windows && engine === 'ruby' && (common.isStableVersion(engine, rubyVersion) || rubyVersion === 'head')) {
         // https://github.com/ruby/setup-ruby/issues/371
         console.log(`Installing latest Bundler for ${engine}-${rubyVersion} on Windows because bin/bundle does not work in bash otherwise`)
         bundlerVersion = 'latest'
       } else {
-        console.log(`Using Bundler 2 shipped with ${engine}-${rubyVersion}`)
-        return '2'
+        console.log(`Using Bundler shipped with ${engine}-${rubyVersion}`)
+        return common.isBundler4PlusDefault(engine, rubyVersion) ? '4' : '2'
       }
     } else if (common.hasBundlerDefaultGem(engine, rubyVersion)) {
       // Those Rubies have a old Bundler default gem < 2.2 which does not work well for `gem 'foo', github: 'foo/foo'`:
@@ -89,8 +88,15 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
     }
   }
 
+  const targetRubyVersion = common.targetRubyVersion(engine, rubyVersion)
+
   if (bundlerVersion === 'latest') {
-    bundlerVersion = '2'
+    // Bundler 4 requires Ruby 3.2+
+    if (targetRubyVersion < 3.2) {
+      bundlerVersion = '2'
+    } else {
+      bundlerVersion = '4'
+    }
   }
 
   if (isValidBundlerVersion(bundlerVersion)) {
@@ -99,24 +105,29 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
     throw new Error(`Cannot parse bundler input: ${bundlerVersion}`)
   }
 
-  // Use Bundler 1 when we know Bundler 2 does not work
-  if (bundlerVersion.startsWith('2')) {
-    if (engine === 'ruby' && floatVersion <= 2.2) {
-      console.log('Bundler 2 requires Ruby 2.3+, using Bundler 1 on Ruby <= 2.2')
+  // Only use Bundler 4 on Ruby 3.2+
+  if (common.floatVersion(bundlerVersion) >= 4 && targetRubyVersion < 3.2) {
+    console.log('Bundler 4 requires Ruby 3.2+, using Bundler 2 instead on Ruby < 3.2')
+    bundlerVersion = '2'
+  }
+
+  // Use Bundler 1 when we know Bundler 2+ does not work
+  if (common.floatVersion(bundlerVersion) >= 2) {
+    if (engine === 'ruby' && targetRubyVersion <= 2.2) {
+      console.log(`Bundler 2+ requires Ruby 2.3+, using Bundler 1 on Ruby <= 2.2`)
       bundlerVersion = '1'
     } else if (engine === 'ruby' && /^2\.3\.[01]/.test(rubyVersion)) {
       console.log('Ruby 2.3.0 and 2.3.1 have shipped with an old rubygems that only works with Bundler 1')
       bundlerVersion = '1'
     } else if (engine === 'jruby' && rubyVersion.startsWith('9.1')) { // JRuby 9.1 targets Ruby 2.3, treat it the same
-      console.log('JRuby 9.1 has a bug with Bundler 2 (https://github.com/ruby/setup-ruby/issues/108), using Bundler 1 instead on JRuby 9.1')
+      console.log('JRuby 9.1 has a bug with Bundler 2+ (https://github.com/ruby/setup-ruby/issues/108), using Bundler 1 instead on JRuby 9.1')
       bundlerVersion = '1'
     }
   }
 
-  const targetRubyVersion = common.targetRubyVersion(engine, rubyVersion)
   // Use Bundler 2.3 when we use Ruby 2.3.2 - 2.5
   // Use Bundler 2.4 when we use Ruby 2.6-2.7
-  if (bundlerVersion == '2') {
+  if (bundlerVersion === '2') {
     if (targetRubyVersion <= 2.5) { // < 2.3.2 already handled above
       console.log('Ruby 2.3.2 - 2.5 only works with Bundler 2.3')
       bundlerVersion = '2.3'
@@ -136,6 +147,14 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
   return bundlerVersion
 }
 
+function bundlerConfigSetArgs(bundlerVersion, key, value) {
+  if (bundlerVersion.startsWith('1')) {
+    return ['config', '--local', key, value]
+  } else {
+    return ['config', 'set', '--local', key, value]
+  }
+}
+
 export async function bundleInstall(gemfile, lockFile, platform, engine, rubyVersion, bundlerVersion, cacheVersion) {
   if (gemfile === null) {
     console.log('Could not determine gemfile path, skipping "bundle install" and caching')
@@ -143,8 +162,8 @@ export async function bundleInstall(gemfile, lockFile, platform, engine, rubyVer
   }
 
   let envOptions = {}
-  if (bundlerVersion.startsWith('1') && common.isBundler2Default(engine, rubyVersion)) {
-    // If Bundler 1 is specified on Rubies which ship with Bundler 2,
+  if (bundlerVersion.startsWith('1') && common.isBundler2PlusDefault(engine, rubyVersion)) {
+    // If Bundler 1 is specified on Rubies which ship with Bundler 2+,
     // we need to specify which Bundler version to use explicitly until the lockfile exists.
     console.log(`Setting BUNDLER_VERSION=${bundlerVersion} for "bundle config|lock" commands below to ensure Bundler 1 is used`)
     envOptions = { env: { ...process.env, BUNDLER_VERSION: bundlerVersion } }
@@ -155,10 +174,10 @@ export async function bundleInstall(gemfile, lockFile, platform, engine, rubyVer
   // An absolute path, so it is reliably under $PWD/vendor/bundle, and not relative to the gemfile's directory
   const bundleCachePath = path.join(process.cwd(), cachePath)
 
-  await exec.exec('bundle', ['config', '--local', 'path', bundleCachePath], envOptions)
+  await exec.exec('bundle', bundlerConfigSetArgs(bundlerVersion, 'path', bundleCachePath), envOptions)
 
   if (fs.existsSync(lockFile)) {
-    await exec.exec('bundle', ['config', '--local', 'deployment', 'true'], envOptions)
+    await exec.exec('bundle', bundlerConfigSetArgs(bundlerVersion, 'deployment', 'true'), envOptions)
   } else {
     // Generate the lockfile so we can use it to compute the cache key.
     // This will also automatically pick up the latest gem versions compatible with the Gemfile.
@@ -193,11 +212,14 @@ export async function bundleInstall(gemfile, lockFile, platform, engine, rubyVer
     console.log(`Found cache for key: ${cachedKey}`)
   }
 
+  // Number of jobs should scale with runner, up to a point
+  const jobs = Math.min(os.availableParallelism(), 8)
   // Always run 'bundle install' to list the gems
-  await exec.exec('bundle', ['install', '--jobs', '4'])
+  await exec.exec('bundle', ['install', '--jobs', `${jobs}`])
 
   // @actions/cache only allows to save for non-existing keys
-  if (!common.isExactCacheKeyMatch(key, cachedKey)) {
+  // Also, skip saving cache for merge_group event
+  if (!common.isExactCacheKeyMatch(key, cachedKey) && process.env['GITHUB_EVENT_NAME'] !== 'merge_group') {
     if (cachedKey) { // existing cache but Gemfile.lock differs, clean old gems
       await exec.exec('bundle', ['clean'])
     }

common.js

@@ -13,6 +13,7 @@ const linuxOSInfo = require('linux-os-info')
 export const windows = (os.platform() === 'win32')
 // Extract to SSD on Windows, see https://github.com/ruby/setup-ruby/pull/14
 export const drive = (windows ? (process.env['RUNNER_TEMP'] || 'C')[0] : undefined)
+const PATH_ENV_VAR = windows ? 'Path' : 'PATH'
 
 export const inputs = {
   selfHosted: undefined
@@ -80,7 +81,7 @@ export function isStableVersion(engine, rubyVersion) {
 }
 
 export function hasBundlerDefaultGem(engine, rubyVersion) {
-  return isBundler1Default(engine, rubyVersion) || isBundler2Default(engine, rubyVersion)
+  return isBundler1Default(engine, rubyVersion) || isBundler2PlusDefault(engine, rubyVersion)
 }
 
 export function isBundler1Default(engine, rubyVersion) {
@@ -95,7 +96,7 @@ export function isBundler1Default(engine, rubyVersion) {
   }
 }
 
-export function isBundler2Default(engine, rubyVersion) {
+export function isBundler2PlusDefault(engine, rubyVersion) {
   if (engine === 'ruby') {
     return floatVersion(rubyVersion) >= 2.7
   } else if (engine.startsWith('truffleruby')) {
@@ -107,7 +108,7 @@ export function isBundler2Default(engine, rubyVersion) {
   }
 }
 
-export function isBundler2dot2Default(engine, rubyVersion) {
+export function isBundler2dot2PlusDefault(engine, rubyVersion) {
   if (engine === 'ruby') {
     return floatVersion(rubyVersion) >= 3.0
   } else if (engine.startsWith('truffleruby')) {
@@ -119,6 +120,13 @@ export function isBundler2dot2Default(engine, rubyVersion) {
   }
 }
 
+const UNKNOWN_TARGET_RUBY_VERSION = 9.9
+
+export function isBundler4PlusDefault(engine, rubyVersion) {
+  const version = targetRubyVersion(engine, rubyVersion)
+  return version != UNKNOWN_TARGET_RUBY_VERSION && version >= 4.0
+}
+
 export function targetRubyVersion(engine, rubyVersion) {
   const version = floatVersion(rubyVersion)
   if (engine === 'ruby') {
@@ -132,6 +140,8 @@ export function targetRubyVersion(engine, rubyVersion) {
       return 2.6
     } else if (version === 9.4) {
       return 3.1
+    } else if (version === 10.0) {
+      return 3.4
     }
   } else if (engine.startsWith('truffleruby')) {
     if (version < 21.0) {
@@ -147,11 +157,11 @@ export function targetRubyVersion(engine, rubyVersion) {
     }
   }
 
-  return 9.9 // unknown, assume recent
+  return UNKNOWN_TARGET_RUBY_VERSION // unknown, assume recent
 }
 
 export function floatVersion(rubyVersion) {
-  const match = rubyVersion.match(/^\d+\.\d+/)
+  const match = rubyVersion.match(/^\d+(\.\d+|$)/)
   if (match) {
     return parseFloat(match[0])
   } else if (isHeadVersion(rubyVersion)) {
@@ -356,23 +366,22 @@ export function win2nix(path) {
 }
 
 export function setupPath(newPathEntries) {
-  const envPath = windows ? 'Path' : 'PATH'
-  const originalPath = process.env[envPath].split(path.delimiter)
+  const originalPath = process.env[PATH_ENV_VAR].split(path.delimiter)
   let cleanPath = originalPath.filter(entry => !/\bruby\b/i.test(entry))
 
-  core.group(`Modifying ${envPath}`, async () => {
+  core.group(`Modifying ${PATH_ENV_VAR}`, async () => {
     // First remove the conflicting path entries
     if (cleanPath.length !== originalPath.length) {
-      console.log(`Entries removed from ${envPath} to avoid conflicts with default Ruby:`)
+      console.log(`Entries removed from ${PATH_ENV_VAR} to avoid conflicts with default Ruby:`)
       for (const entry of originalPath) {
         if (!cleanPath.includes(entry)) {
           console.log(`  ${entry}`)
         }
       }
-      core.exportVariable(envPath, cleanPath.join(path.delimiter))
+      core.exportVariable(PATH_ENV_VAR, cleanPath.join(path.delimiter))
     }
 
-    console.log(`Entries added to ${envPath} to use selected Ruby:`)
+    console.log(`Entries added to ${PATH_ENV_VAR} to use selected Ruby:`)
     for (const entry of newPathEntries) {
       console.log(`  ${entry}`)
     }
@@ -406,14 +415,17 @@ export async function setupJavaHome(rubyPrefix) {
       // JAVA_HOME_21_X64 - https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2404-Readme.md#java
       let newHomeVar = `JAVA_HOME_21_${arch}`
       let newHome = process.env[newHomeVar]
+      let bin = path.join(newHome, 'bin')
 
       if (newHome === "undefined") {
         throw new Error(`JAVA_HOME is not Java 21+ needed for JRuby and \$${newHomeVar} is not defined`)
       }
 
       console.log(`Setting JAVA_HOME to ${newHomeVar} path ${newHome}`)
-
       core.exportVariable("JAVA_HOME", newHome)
+
+      console.log(`Adding ${bin} to ${PATH_ENV_VAR}`)
+      core.addPath(bin)
     }
   })
 }

index.js

@@ -175,7 +175,7 @@ function validateRubyEngineAndVersion(platform, engineVersions, engine, parsedVe
   // Well known version-platform combinations which do not work:
   if (engine === 'ruby' && platform.startsWith('macos') && os.arch() === 'arm64' && common.floatVersion(version) < 2.6) {
     throw new Error(`CRuby < 2.6 does not support macos-arm64.
-        Either use a newer Ruby version or use a macOS image running on amd64, e.g., macos-13.
+        Either use a newer Ruby version or use a macOS image running on amd64, e.g., macos-15-intel.
         Note that GitHub changed the meaning of macos-latest from macos-12 (amd64) to macos-14 (arm64):
         https://github.blog/changelog/2024-04-01-macos-14-sonoma-is-generally-available-and-the-latest-macos-runner-image/
 
@@ -188,8 +188,8 @@ function validateRubyEngineAndVersion(platform, engineVersions, engine, parsedVe
           - { os: macos-latest, ruby: '2.4' }
           - { os: macos-latest, ruby: '2.5' }
           include:
-          - { os: macos-13, ruby: '2.4' }
-          - { os: macos-13, ruby: '2.5' }
+          - { os: macos-15-intel, ruby: '2.4' }
+          - { os: macos-15-intel, ruby: '2.5' }
 
         But of course you should consider dropping support for these long-EOL Rubies, which cannot even be built on recent macOS machines.`)
   } else if (engine === 'truffleruby' && platform.startsWith('windows')) {

ruby-builder-versions.json

@@ -13,8 +13,9 @@
     "3.1.0-preview1", "3.1.0", "3.1.1", "3.1.2", "3.1.3", "3.1.4", "3.1.5", "3.1.6", "3.1.7",
     "3.2.0-preview1", "3.2.0-preview2", "3.2.0-preview3", "3.2.0-rc1", "3.2.0", "3.2.1", "3.2.2", "3.2.3", "3.2.4", "3.2.5", "3.2.6", "3.2.7", "3.2.8", "3.2.9",
     "3.3.0-preview1", "3.3.0-preview2", "3.3.0-preview3", "3.3.0-rc1", "3.3.0", "3.3.1", "3.3.2", "3.3.3", "3.3.4", "3.3.5", "3.3.6", "3.3.7", "3.3.8", "3.3.9", "3.3.10",
-    "3.4.0-preview1", "3.4.0-preview2", "3.4.0-rc1", "3.4.0", "3.4.1", "3.4.2", "3.4.3", "3.4.4", "3.4.5", "3.4.6", "3.4.7",
+    "3.4.0-preview1", "3.4.0-preview2", "3.4.0-rc1", "3.4.0", "3.4.1", "3.4.2", "3.4.3", "3.4.4", "3.4.5", "3.4.6", "3.4.7", "3.4.8",
     "3.5.0-preview1",
+    "4.0.0-preview2", "4.0.0-preview3", "4.0.0",
     "head", "debug", "asan", "3.4-asan"
   ],
   "jruby": [

windows-toolchain-versions.json

@@ -267,6 +267,10 @@
     "arm64": "https://github.com/ruby/setup-msys2-gcc/releases/latest/download/msys2-clangarm64.7z",
     "x64": "https://github.com/ruby/setup-msys2-gcc/releases/latest/download/msys2-ucrt64.7z"
   },
+  "3.4.8": {
+    "arm64": "https://github.com/ruby/setup-msys2-gcc/releases/latest/download/msys2-clangarm64.7z",
+    "x64": "https://github.com/ruby/setup-msys2-gcc/releases/latest/download/msys2-ucrt64.7z"
+  },
   "head": {
     "arm64": "https://github.com/ruby/setup-msys2-gcc/releases/latest/download/msys2-clangarm64.7z",
     "x64": "https://github.com/ruby/setup-msys2-gcc/releases/latest/download/msys2-ucrt64.7z"

windows-versions.json

@@ -267,6 +267,10 @@
     "arm64": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.4.7-1/rubyinstaller-3.4.7-1-arm.7z",
     "x64": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.4.7-1/rubyinstaller-3.4.7-1-x64.7z"
   },
+  "3.4.8": {
+    "arm64": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.4.8-1/rubyinstaller-3.4.8-1-arm.7z",
+    "x64": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.4.8-1/rubyinstaller-3.4.8-1-x64.7z"
+  },
   "head": {
     "arm64": "https://github.com/oneclick/rubyinstaller2/releases/download/rubyinstaller-head/rubyinstaller-head-arm.7z",
     "x64": "https://github.com/oneclick/rubyinstaller2/releases/download/rubyinstaller-head/rubyinstaller-head-x64.7z"