Bundler-2.4 requires Ruby 2.6 or later.

* No need to duplicate docs about which is *-latest here.

README.md

@@ -38,13 +38,13 @@ which means Ruby ≤ 2.4 is unmaintained and considered insecure.
 
 ### Supported Platforms
 
-The action works on these [GitHub-hosted runners](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/virtual-environments-for-github-hosted-runners) virtual environments. Virtual environments not listed below are unsupported.
+The action works on these [GitHub-hosted runners](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources) images. Runner images not listed below are not supported yet. `$OS-latest` just alias to one of these images.
 
-| Operating System | Recommended | Other Supported Versions |
-| ---------------- | ----------- | ------------------------ |
-| Ubuntu  | `ubuntu-latest` (= `ubuntu-20.04`)  | `ubuntu-18.04`, `ubuntu-22.04` |
-| macOS   | `macos-latest` (= `macos-11`)       | `macos-10.15`, `macos-12` |
-| Windows | `windows-latest` (= `windows-2022`) | `windows-2019` |
+| Operating System | Supported |
+| ---------------- | --------- |
+| Ubuntu  | `ubuntu-18.04`, `ubuntu-20.04`, `ubuntu-22.04` |
+| macOS   | `macos-10.15`, `macos-11`, `macos-12` |
+| Windows | `windows-2019`, `windows-2022` |
 
 The prebuilt releases are generated by [ruby-builder](https://github.com/ruby/ruby-builder)
 and on Windows by [RubyInstaller2](https://github.com/oneclick/rubyinstaller2).
@@ -132,7 +132,7 @@ and the [condition and expression syntax](https://help.github.com/en/actions/ref
 * engine-version like `ruby-2.6.5` and `truffleruby-19.3.0`
 * short version like `'2.6'`, automatically using the latest release matching that version (`2.6.10`)
 * version only like `'2.6.5'`, assumes MRI for the engine
-* engine only like `truffleruby`, uses the latest stable release of that implementation
+* engine only like `ruby` and `truffleruby`, uses the latest stable release of that implementation
 * `.ruby-version` reads from the project's `.ruby-version` file
 * `.tool-versions` reads from the project's `.tool-versions` file
 * If the `ruby-version` input is not specified, `.ruby-version` is tried first, followed by `.tool-versions`

bundler.js

@@ -107,6 +107,7 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
   }
 
   // Use Bundler 1 when we know Bundler 2 does not work
+  // Use Bundler 2.3 when we use Ruby 2.3.2-2.5
   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')
@@ -114,6 +115,9 @@ export async function installBundler(bundlerVersionInput, rubygemsInputSet, lock
     } 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 === 'ruby' && floatVersion <= 2.5) {
+      console.log('Ruby 2.3.2-2.5 only works with Bundler 2.3')
+      bundlerVersion = '2.3'
     } 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')
       bundlerVersion = '1'

windows-versions.json

@@ -40,14 +40,17 @@
   "2.7.4": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-2.7.4-1/rubyinstaller-2.7.4-1-x64.7z",
   "2.7.5": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-2.7.5-1/rubyinstaller-2.7.5-1-x64.7z",
   "2.7.6": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-2.7.6-1/rubyinstaller-2.7.6-1-x64.7z",
+  "2.7.7": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-2.7.7-1/rubyinstaller-2.7.7-1-x64.7z",
   "3.0.0": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.0-1/rubyinstaller-3.0.0-1-x64.7z",
   "3.0.1": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.1-1/rubyinstaller-3.0.1-1-x64.7z",
   "3.0.2": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.2-1/rubyinstaller-3.0.2-1-x64.7z",
   "3.0.3": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.3-1/rubyinstaller-3.0.3-1-x64.7z",
   "3.0.4": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.4-1/rubyinstaller-3.0.4-1-x64.7z",
+  "3.0.5": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.0.5-1/rubyinstaller-3.0.5-1-x64.7z",
   "3.1.0": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.0-1/rubyinstaller-3.1.0-1-x64.7z",
   "3.1.1": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.1-1/rubyinstaller-3.1.1-1-x64.7z",
   "3.1.2": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.2-1/rubyinstaller-3.1.2-1-x64.7z",
+  "3.1.3": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.3-1/rubyinstaller-3.1.3-1-x64.7z",
   "head": "https://github.com/oneclick/rubyinstaller2/releases/download/rubyinstaller-head/rubyinstaller-head-x64.7z",
   "mingw": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mingw.7z",
   "mswin": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mswin.7z",