From 37df1bb8716880291673519d175ca9e65770a787 Mon Sep 17 00:00:00 2001
From: Shinichi Maeshima <netwillnet@gmail.com>
Date: Mon, 27 Apr 2026 18:25:32 +0900
Subject: [PATCH 1/3] Add Ruby4.0 to CI matrix

Also update actions/checkout to the latest version
---
 .github/workflows/ruby.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 24848b4..b332bb6 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', '3.3', '3.4' ]
+        ruby: [ '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', '3.3', '3.4', '4.0' ]
         gemfile:
           - "rack_2"
           - "rack_3"
@@ -14,7 +14,7 @@ jobs:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
     name: Ruby ${{ matrix.ruby }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:

From 3f7d1129256ec5107ff76918334ecd8fd6637f7a Mon Sep 17 00:00:00 2001
From: Shinichi Maeshima <netwillnet@gmail.com>
Date: Fri, 3 Jul 2026 09:36:13 +0900
Subject: [PATCH 2/3] Update actions/checkout to the latest version

---
 .github/workflows/ruby.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index b332bb6..a4140a0 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -14,7 +14,7 @@ jobs:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
     name: Ruby ${{ matrix.ruby }}
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:

From 334d57d24d865833f86f76879d368e516adc07ee Mon Sep 17 00:00:00 2001
From: Shinichi Maeshima <netwillnet@gmail.com>
Date: Fri, 3 Jul 2026 09:47:50 +0900
Subject: [PATCH 3/3] Drop Ruby 2.x from the test matrix

---
 .github/workflows/ruby.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index a4140a0..a66b511 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', '3.3', '3.4', '4.0' ]
+        ruby: [ '3.0', '3.1', '3.2', '3.3', '3.4', '4.0' ]
         gemfile:
           - "rack_2"
           - "rack_3"